Online shopping for gold bracelets, but the arrival is stone? Recently, Mr. Zhang from Dongguan, Guangdong Province encountered such a wonderful thing, which happened to be completely recorded by the surveillance camera of the convenience store. However, the seller in JD.COM insisted that the goods were not sent in the wrong way, suspecting that the goods had been switched. Afterwards, both the seller in JD.COM and SF Express chose to call the police, and the police are still investigating.

　　On September 4th, Sina Guangdong Express Complaints (ts.gd.sina.cn) contacted Ms. Li, the public relations manager of South China District, JD.COM. The other party responded that JD.COM would not shield the seller, and everything would be subject to the police investigation. However, in order to protect the rights and interests of consumers, the merchants have been persuaded to reissue the goods, and the grams are not less than the grams of the original goods.

　　In the early morning, online shopping for gold bracelets was asked to cancel the order, and consumers refused to receive stones.

　　In the early morning of August 29th, Mr. Zhang from Dongguan bought two gold bracelets in "Xizhao Jewelry Flagship Store" in JD.COM. "A bracelet weighing 52.66g only costs more than 8,000 yuan, which is a good deal", so he placed two orders with his own account and his wife’s account respectively.

　　At 11 o’clock in the morning, Mr. Zhang received a phone call claiming to be a seller’s staff in JD.COM. "The other party angrily asked me to cancel the order, saying that more than 50 grams of gold could not be more than 8,000 yuan and could not be delivered according to the order." Mr. Zhang said that after JD.COM intervened, the seller arranged SF Express delivery.

　　At 4 o’clock in the afternoon of August 30, Mr. Zhang went to the convenience store to pick up the goods and opened the package for inspection on the spot. However, the result surprised him. "The two express boxes are all stones."

　　To this end, Mr. Zhang refused to sign for it and reported the situation to the merchants, but the seller insisted that the goods were intact and undamaged at the time of delivery, and suspected that the goods were switched by consumers. "SF Express can testify, and convenience stores also have surveillance videos." Mr. Zhang said.

　　It is understood that after the incident, SF Express actively cooperated with the investigation, and handled the alarm in Dongguan. On the afternoon of September 1, it sent staff to the convenience store to retrieve the surveillance video. Mr. Zhang also copied a copy as a backup.

　　Judging from the convenience store surveillance video provided by Mr. Zhang complaining to Sina Guangdong Express, the goods he received that day were really not gold bracelets, but two stones.

　　Mr. Zhang said that the seller could not provide the complete surveillance video before and after packaging the goods, and could not rule out the relevant responsibilities. According to the requirements of the order, no matter whether the goods are "replaced" or the seller deliberately sends the wrong goods, the result should not be "paid" by the consumer. He asked the seller to re-deliver the goods according to the order.

　　Seller: The goods are out of stock and can only be refunded and cannot be re-shipped.

　　After the incident, Mr. Zhang, the consumer, repeatedly negotiated with the sellers in JD.COM. On September 3rd, the seller "Xizhao Jewelry Flagship Store" in JD.COM responded to Mr. Zhang, saying that the product was a promotional item for clearing inventory, and it was sold at a 50% discount. Now it has been sold out and cannot be re-shipped, so it can only be refunded to consumers.

　　Mr. Zhang said it was unacceptable, and suggested that different goods could be accepted, as long as they were of the same weight. However, the seller said that it could not be issued casually according to the number of grams, and the two sides were once again deadlocked.

　　JD.COM: I have persuaded the merchants to reissue the goods in grams not less than the original goods.

　　On September 4th, Sina Guangdong Express complained to JD.COM, the platform of the incident. In the afternoon, Ms. Li, the public relations manager of South China District of JD.COM, responded that the company had conducted a survey on the relevant situation to the merchants. Ms. Li said that the merchants insisted that the goods they sent were gold, and they immediately alerted the local authorities when they learned that the consumers had received the stones. At present, the merchants provided photos when they delivered the goods, so they could not provide surveillance videos when they delivered the goods. Everything was subject to the police investigation, and JD.COM would not shield the merchants.

　　On September 5th, Ms. Li, the public relations manager of South China District of JD.COM, complained to Kuaikuai about the latest progress. She said that in order to protect consumers’ rights and interests, JD.COM had communicated with the merchants many times, and at present, she had persuaded the merchants Xizhao Jewelry Flagship Store to reissue the goods to the consumers first. The goods were similar in style, and the grams were not less than the grams of the original products, and reached an agreement with the consumers through consultation.

　　Lawyer: The key is to clarify the responsibility between the seller and the courier company.

　　Lawyer Liu Guohua, a member of Sina Guangdong Express Complaint Advisory Group and Guangdong Benben Law Firm, believes that consumers who have not received the corresponding goods in the case of payment belong to the injured party. At present, the key to the case is to clarify the responsibility between the seller and the courier company. Since both parties have reported to the police, the case has been involved in a criminal case, and the person responsible for the incident should be determined by the police investigation results. However, before the investigation results come out, the seller should take corresponding remedies for the losses of consumers, otherwise consumers can sue.

　　(Sina Guangdong GDTS01)

　　People’s Daily Online, Beijing, May 16 (Reporter Yang Xi) According to the National Bureau of Statistics, in April 2023, China’s economy and society resumed normal operation in an all-round way, most production and demand indicators increased year-on-year, service industry and consumption recovered quickly, employment prices were generally stable, and economic operation continued to recover to a good trend.

　　Fu Linghui, spokesperson of the National Bureau of Statistics and director of the National Economic Statistics Department, said that overall, in April, the national economy continued to recover and the positive factors accumulated. However, we must also see that the international environment is still complicated and severe, domestic demand is still insufficient, and the endogenous driving force for economic recovery is not strong. In the next stage, we should adhere to the general tone of striving for progress while maintaining stability, implement the new development concept completely, accurately and comprehensively, accelerate the construction of a new development pattern, comprehensively deepen reform and opening up, combine giving full play to the effectiveness of policies with stimulating the vitality of business entities, actively restore and expand demand, accelerate the construction of a modern industrial system, promote the effective improvement of quality and reasonable growth of quantity of the economy, and strive to promote high-quality economic development.

　　The service industry continued to pick up, and the contact-gathering service industry improved significantly.

　　In April, the national service industry production index increased by 13.5% year-on-year, 4.3 percentage points faster than last month. By industry, the production index of accommodation and catering, wholesale and retail, transportation, warehousing and postal services, information transmission, software and information technology services increased by 48.7%, 18.8%, 17.6% and 13.2% respectively, which was 18.8, 7.9, 5.7 and 1.2 percentage points higher than that of last month. From January to April, the national service industry production index increased by 8.4% year-on-year, 1.7 percentage points faster than that in January-March. From January to March, the operating income of service enterprises above designated size increased by 5.0% year-on-year. In April, the business activity index of service industry was 55.1%, and the expected business activity index was 62.3%. Among them, the business activity index of railway transportation, air transportation, accommodation, telecommunications, radio and television, satellite transmission services, culture, sports and entertainment and other industries was in the high boom zone of more than 60%.

　　Industrial production is generally stable, and the equipment manufacturing industry is growing rapidly.

　　In April, the added value of industrial enterprises above designated size increased by 5.6% year-on-year, 1.7 percentage points faster than last month; The chain decreased by 0.47%. In terms of three categories, the added value of the mining industry was flat year-on-year, with the manufacturing industry increasing by 6.5% and the electricity, heat, gas and water production and supply industries increasing by 4.8%. The added value of equipment manufacturing industry increased by 13.2% year-on-year, 5.3 percentage points faster than last month. In terms of economic types, the added value of state-owned holding enterprises increased by 6.6% year-on-year; Joint-stock enterprises increased by 4.4%, and foreign-invested enterprises from Hong Kong, Macao and Taiwan increased by 11.8%. Private enterprises increased by 1.6%. In terms of products, the output of new energy vehicles and solar cell products increased by 85.4% and 69.1% respectively. From January to April, the added value of industrial enterprises above designated size increased by 3.6% year-on-year, 0.6 percentage points faster than that in January-March. In April, the purchasing manager index of manufacturing industry was 49.2%, and the expected index of enterprise production and operation activities was 54.7%.

　　Market sales grew rapidly, and online retail sales increased rapidly.

　　In April, the total retail sales of social consumer goods was 3,491 billion yuan, up 18.4% year-on-year, 7.8 percentage points faster than last month; The chain increased by 0.49%. According to the location of business units, the retail sales of urban consumer goods reached 3,039.8 billion yuan, up 18.6% year-on-year; The retail sales of rural consumer goods reached 451.3 billion yuan, up by 17.3%. By consumption type, the retail sales of commodities reached 3,115.9 billion yuan, up by 15.9%; The catering revenue was 375.1 billion yuan, an increase of 43.8%. The sales of upgraded goods grew rapidly, and the retail sales of gold, silver and jewelry, sports and entertainment goods and cosmetics above designated size increased by 44.7%, 25.7% and 24.3% respectively. From January to April, the total retail sales of social consumer goods was 14,983.3 billion yuan, up 8.5% year-on-year, 2.7 percentage points faster than that in January-March. The national online retail sales reached 4,410.8 billion yuan, up 12.3% year-on-year, 3.7 percentage points faster than that in January-March. Among them, the online retail sales of physical goods was 3,716.4 billion yuan, up by 10.4%, accounting for 24.8% of the total retail sales of social consumer goods.

　　The scale of investment in fixed assets has expanded, and investment in high-tech industries has grown rapidly.

　　From January to April, the national investment in fixed assets (excluding farmers) was 1,474.82 billion yuan, up 4.7% year-on-year, down 0.4 percentage point from January to March. In terms of fields, infrastructure investment increased by 8.5% year-on-year, manufacturing investment increased by 6.4%, and real estate development investment decreased by 6.2%. The national commercial housing sales area was 376.36 million square meters, down 0.4% year-on-year; The sales of commercial housing reached 3,975 billion yuan, up by 8.8%. By industry, investment in the primary industry increased by 0.3%, investment in the secondary industry increased by 8.4%, and investment in the tertiary industry increased by 3.1%. Private investment increased by 0.4%. Investment in high-tech industries increased by 14.7% year-on-year, of which investment in high-tech manufacturing and high-tech service industries increased by 15.3% and 13.4% respectively. In the high-tech manufacturing industry, the investment in electronic and communication equipment manufacturing, medical equipment and instrumentation manufacturing increased by 19.9% and 19.4% respectively; In the high-tech service industry, the investment in scientific and technological achievements transformation service industry and professional technical service industry increased by 42.1% and 33.9% respectively. Investment in social fields increased by 5.6%, of which investment in health and education increased by 13.8% and 5.0% respectively. In April, investment in fixed assets (excluding farmers) decreased by 0.64% from the previous month.

　　The import and export of goods continued to grow and the trade structure continued to be optimized.

　　In April, the total import and export of goods was 3,434.7 billion yuan, up 8.9% year-on-year. Among them, exports were 2,026.5 billion yuan, an increase of 16.8%; Imports reached 1,408.1 billion yuan, down 0.8%. Import and export balance, with a trade surplus of 618.4 billion yuan. From January to April, the total import and export volume of goods was 13,323.2 billion yuan, up 5.8% year-on-year. Among them, exports reached 7,672.9 billion yuan, up by 10.6%; Imports reached 5,650.3 billion yuan, up by 0.02%. From January to April, the import and export of general trade increased by 8.5% year-on-year, accounting for 65.4% of the total import and export, an increase of 1.6 percentage points over the same period of last year. The import and export of private enterprises increased by 15.8%, accounting for 52.9% of the total import and export, an increase of 4.6 percentage points over the same period of last year. The export of mechanical and electrical products increased by 10.5%, accounting for 57.9% of the total export.

　　The employment situation is generally stable, and the urban survey unemployment rate has dropped.

　　In April, the national urban survey unemployment rate was 5.2%, down 0.1 percentage point from the previous month. The unemployment rate of local registered labor force survey is 5.1%; The survey unemployment rate of migrant registered labor force is 5.4%, of which the survey unemployment rate of migrant agricultural registered labor force is 5.1%. The unemployment rate of the 16-24-year-old and 25-59-year-old labor force survey is 20.4% and 4.2% respectively. Among the 25-59-year-old labor force, the survey unemployment rate of junior high school education or below, senior high school education, junior college education and bachelor degree or above is 4.5%, 4.6%, 4.0% and 3.1% respectively. The survey unemployment rate in 31 big cities and towns is 5.5%. The average weekly working hours of employees in enterprises nationwide are 48.8 hours.

　　Consumer prices rose year-on-year, while industrial producer prices fell year-on-year.

　　In April, the national consumer price (CPI) rose by 0.1% year-on-year and decreased by 0.1% quarter-on-quarter. By category, the prices of food, tobacco and alcohol increased by 0.8%, clothing by 0.9%, housing by 0.2%, daily necessities and services by 0.1%, transportation and communication by 3.3%, education, culture and entertainment by 1.9%, medical care by 1.0% and other supplies and services by 3.5%. Among the prices of food, tobacco and alcohol, the price of fresh vegetables decreased by 13.5%, the price of grain increased by 1.1%, the price of pork increased by 4.0% and the price of fresh fruit increased by 5.3%. After deducting food and energy prices, the core CPI rose by 0.7% year-on-year, the same as last month. From January to April, the national consumer price rose by 1.0% year-on-year.

　　In April, the ex-factory price of industrial producers nationwide decreased by 3.6% year-on-year and 0.5% quarter-on-quarter. The purchase price of industrial producers nationwide decreased by 3.8% year-on-year and 0.7% quarter-on-quarter. From January to April, the ex-factory price and purchase price of industrial producers nationwide decreased by 2.1% and 1.5% respectively.

　　The great struggle casts a great spirit of fighting against epidemic diseases, which leads young people to grow into talents. General Secretary of the Supreme Leader praised the youth in his important speech at the National Commendation Conference on Fighting COVID-19 Epidemic: "The younger generation is not afraid of hardships, difficulties and sacrifices, shouldering a mountain of responsibilities with their arms, showing their youthful and passionate style and showing the hope of the Chinese nation!" The great anti-epidemic spirit is the navigation mark of the growth and progress of contemporary youth, which will inspire and lead the youth to grow into talents for a long time, guide the contemporary youth to face difficulties and shoulder the heavy responsibility of the times, and contribute to the great rejuvenation of the Chinese nation.

　　Serve the people wholeheartedly and adhere to the value pursuit of life first. People’s lives are at stake, and in the face of the sudden epidemic, our anti-epidemic commanders and fighters, regardless of their own safety, persist in taking the people as the center, rush to the front line and strive to carry out rescue, protection and security work. The virus is ruthless, and there is love in the world. It is the vast number of anti-epidemic commanders and fighters who sacrificed their ego and achieved great success, and made indelible contributions to the fight against the COVID-19 epidemic and the protection of the lives of more people, so the value of life was sublimated. As witnesses and participants in the fight against COVID-19, young people have accelerated their growth in the great fight against the epidemic, and their performance is gratifying. China people, including young people, have been tempered in the fight against the epidemic, and the value monument of life first will always be the value orientation and action guide to guide the growth of young people, and encourage young people to realize the unity of personal value and social value in serving the people, and to bloom brilliant youthful demeanor in overcoming difficulties.

　　Keep up with the party and carry forward the unity of the whole country. In the face of the menacing unknown epidemic situation and the rapidly spreading social panic, the Communist Party of China (CPC) led the people to calmly deal with it, quickly turned the institutional advantages into anti-epidemic effectiveness, made overall plans and made decisive decisions, and organized the people of the whole country to quickly launch a people’s war, a general war and a blocking war to prevent and control the epidemic situation. Under the leadership of the Communist Party of China (CPC), the people of the whole country shared the same fate and went through a severe test. Practice once again shows that the Communist Party of China (CPC) is the most reliable backbone of Chinese people, and the people are the source of strength to do a good job in epidemic prevention and control. For young people, it is necessary to guide the course on the road of growth, maintain a high degree of consistency with the CPC Central Committee in ideological and political actions, and love the country, the party and socialism; Closely unite around the CPC Central Committee, actively practice the mass line, connect with the masses, go deep into the masses, serve the masses, and unite the masses to create the great cause of the rejuvenation of the Chinese nation.

　　Live up to the people and show the tenacious will to risk one’s life and forget one’s death The epidemic was as fierce as a tiger. In the fear of unknown life and death, the anti-epidemic warriors devoted their lives to their mission and loved all beings with great care, and wrote a great anti-epidemic hero hymn. The fight against the epidemic has once again demonstrated to the world the patriotic feelings of the people of China, their heroic spirit of not being afraid of difficulties and going forward bravely, and their tenacious will to work tirelessly and forget their lives. At present, our country is in a critical period of realizing the great rejuvenation of the Chinese nation and gradually approaching the center of the world stage. There are many difficulties and obstacles on the road ahead. As young people in the new era, we should consciously carry forward the spirit of giving up our lives and forgetting death, persevere in hardships, rise up in hardships, grow up in hardships, and achieve the great cause of national rejuvenation.

　　Seeking truth from innovation and adhering to scientific practical character. In the face of new infectious diseases unknown before, we uphold the scientific spirit and attitude, ask modern science for prescriptions and treatments, and speak with practical curative effects; Respect scientific laws and promote accurate coverage of detection, prevention and control with scientific measures; Insist on seeking truth from facts, promote differentiated prevention and control with scientific spirit, and promote the resumption of work and production; At the same time, strengthen innovation and jointly promote technical research. The great practice of China’s anti-epidemic struggle has once again proved that scientific response is the basis for achieving major strategic achievements in epidemic prevention and control. Science and technology are the primary productive forces, and young people are the new force to promote innovation-driven development and accelerate the pace of scientific and technological innovation in China. To carry forward the great anti-epidemic spirit and adhere to the scientific practical character requires the vast number of young people to consciously shoulder the responsibility of the times to promote scientific and technological innovation. Contemporary youth need to master modern scientific knowledge, enhance modern scientific literacy, and face difficult problems in study, work and life with scientific attitude, scientific thinking and scientific methods; We should strive to be pioneers and pioneers of China’s advanced productive forces, persist in facing the world’s scientific and technological frontier, the main battlefield of the economy, the major needs of the country, and people’s lives and health, and constantly March into the breadth and depth of science and technology, so as to push China’s scientific and technological innovation to a new level and better meet the people’s needs for a better life.

　　Help each other with one heart and shoulder the moral responsibility of sharing destiny. The road is not lonely, and love is boundless. China has always adhered to the concept of the community of human destiny in the fight against epidemic diseases, promptly and actively reported information such as epidemic situation and Covid-19 gene sequence, publicized China’s diagnosis, treatment and prevention and control programs, exchanged China’s experience in fighting epidemic diseases, provided people and property for the world’s fight against epidemic diseases, and exported huge amounts of anti-epidemic materials, which injected a steady stream of impetus into the global epidemic prevention and control, and concentrated on the moral responsibility of China people to work together and love peace. In the era of economic globalization, as young people, we should consciously enhance the sense of community of human destiny, look at the great development, great changes and great adjustments in the world from a broad world perspective, actively participate in solving global problems with the moral responsibility of sharing destiny, and make our own contributions to seeking long-term peace, prosperity and stability in the world and building a community of human destiny.

　　People can’t stand without spirit, and countries can’t stand without spirit. In this unexpected COVID-19 epidemic struggle, the people of China vividly interpreted the spirit of China with the practice that made the world sigh, inherited and developed the spirit of patriotism, collectivism and socialism, and forged a great anti-epidemic spirit. This is a valuable spiritual wealth, which will inspire young people to be loyal learners, disseminators and practitioners of the great anti-epidemic spirit; Encourage young people to firmly follow the party’s determination and people-centered perseverance, correct their own course in real time, and adhere to the value pursuit of life first; Encourage young people to carry forward the United strength of the whole country, to give up their lives and forget their deaths, to adhere to the scientific and rational practical character, to overcome difficulties and achieve great achievements; Encourage young people to look at the world, consciously shoulder the moral responsibility of sharing destiny, and work together with the world’s positive forces to help each other and work together. (Author: Xie Jiashu Wang Yuxing Unit: School of Marxism, South China University of Technology)

China is one of the countries with the most serious natural disasters in the world, with many kinds of disasters, wide geographical distribution, high frequency and heavy losses. Earthquake, fire, flood, landslide and debris flow, typhoon….. Natural disasters may occur at any time, so it is very important to master the skills of disaster prevention and self-help as soon as possible, and to save themselves and each other in time when encountering disasters.

May 12th, 2022 is the 14th National Disaster Prevention and Mitigation Day. Let’s get practical knowledge about disaster prevention and mitigation!

How to escape and save yourself in an earthquake?

At home, hide under sturdy furniture nearby, or hide in a corner or bathroom. Don’t use the elevator to escape.

In public places, stay away from glass windows and shelves, obey the instructions of the staff and don’t crowd.

Outdoor, avoid buildings, bridges or hillsides, and look for an empty and safe place. Trapped ruins should save energy and call for help by tapping.

How to save yourself in case of fire?

Call at the first timeCall the police and escape in an orderly manner according to the evacuation signs. Don’t take the elevator, lest the trapped elevator be in danger.

When passing through the thick smoke, cover your nose and mouth with wet clothes, and bend over or crawl against the wall.

If you can’t escape, you can call for help in safe areas such as balconies and roofs.

How to deal with floods?

If you want to move to high places such as hillsides, you can climb roofs, trees, etc. when it is too late to move, and you can’t climb telephone poles and iron towers.

If you fall into the water, don’t panic, grab anything floating around you, let your head surface, and wait for rescuers to arrive.

How to deal with landslides and mudslides?

When you hear the roar of the valley, you should be alert, don’t hide in low-lying land or under the hillside, don’t cross the debris flow and landslide area, and run to the heights on both sides perpendicular to the direction of debris flow.

What should I do if a typhoon strikes?

Reduce going out, reinforce structures that are easy to be blown, close doors and windows, and stick them with adhesive tape.The "meter" figure.

Don’t stay near buildings, billboards and telephone poles, and beware of falling objects.

Pay attention to the safety of food and water after the typhoon.

(jointly produced by Guangming. com and the Press and Publicity Department of the Emergency Management Department)

The film includes 17 concerts. Martha joked about making a sequel.

　　"Pursuing Dreams in Mayday 3DNA" is the first time for these five people to make a movie. There are many clips of their concerts in the film, and the golden songs are endless. A Xin, the lead singer, revealed: "It feels very fresh to make a movie like this. There are almost 17 concerts in it." Because it is a 3D movie, the camera used in shooting is very advanced, and A Xin also "threatened" that the visual effect of this movie would not be lost to.

　　The three stories in the film were not filmed in Beijing. When asked why, bassist Martha immediately joked, "Maybe the director thinks Beijing is too cold, or maybe the sequel will be filmed in Beijing." Just after that, Martha "repented" again. "Everyone knows that I am the most irresponsible person in May."

The number of finless porpoises living in Nanjing section of the Yangtze River is increasing, and the biodiversity of their homes is becoming increasingly rich. Yesterday, the Municipal Bureau of Greening and Landscape Architecture released the dynamic investigation of biodiversity in the Yangtze finless porpoise provincial nature reserve (hereinafter referred to as the "reserve") from 2023 to 2024. The reporter learned from the press conference that the number of finless porpoises and birds in the reserve has increased; Precious and endangered species and wetland plants are rich in distribution; The water environment has reached Class II value of fishery water quality and surface water environmental quality standard. The overall ecological environment quality is stable and improving.

New changes: the number of finless porpoises in the reserve has increased from 62 to 65.

The Yangtze finless porpoise is the only existing cetacean in the Yangtze River, which is a national first-class protected wild animal and an important indicator species to test the health of the Yangtze River ecosystem.

Nanjing is the only big city in the whole Yangtze River basin where you can see the wild finless porpoise at close range in the central section of the city. In 2014, Nanjing finless porpoise reserve was formally established, starting from Xinshengzhou in Jiangning District in the west, adjacent to Maanshan City in Anhui Province, and east to Nanjing Yangtze River Bridge, with a planned total area of 80.38 square kilometers, including 51.52 square kilometers in the core area and 28.86 square kilometers in the experimental area.

The dynamic investigation of biodiversity in the nature reserve lasted from the autumn of 2023 to the summer of 2024. According to the investigation and analysis of four quarters, the number of finless porpoises in the finless porpoise nature reserve showed an increasing trend.

Zhang Ruizhong, a first-class researcher of the Municipal Bureau of Greening and Landscape Architecture, said that the number of Yangtze finless porpoises in the reserve is about 65, an increase of 4.84% compared with the 62 in the background resources survey in 2022. The finless porpoise is generally distributed continuously, and its Jizhou-Zimuzhou waters and Qianzhou waters are hot spots. There are also seasonal differences in distribution, especially in the waters of the Yangtze River Bridge from Xinshengzhou to Dashengguan, which are mainly affected by geographical location, hydrological conditions and fish resources. During the investigation period, the mother and child dolphins were also observed for 9 times, which means that the Yangtze finless porpoise population in the reserve has good development potential.

New discovery: rich biological resources, rare bird black stork first appeared.

A finless porpoise needs to be strong in order to breed, and it needs to have enough food in order to be strong. An important reason for the decrease in the number of finless porpoises in the Yangtze River is that the food sources of finless porpoises are reduced due to uncontrolled fishing. With the ten-year ban on fishing in Nanjing, the Yangtze River has not only been able to recuperate, but also provided valuable survival opportunities for rare animals such as finless porpoises.

According to Zhang Ruizhong, this survey found that the protected area is rich in aquatic biological resources and there are many precious and endangered species. A total of 105 species of phytoplankton, 59 species of zooplankton, 56 species of benthos and 47 species of fish were collected and identified. In addition to the Yangtze finless porpoise, which is a national first-class protected wild animal, there are also two national second-class protected aquatic wild animals: Myxocyprinus asiaticus, an endangered species in China’s Red Book, and the aquatic wild animals in Jiangsu Province, such as Anoplophora longirostrata, Anguilla japonica, Diplodocus and tong yu.

There are also many kinds of birds in and around the reserve. A total of 123 species of birds were recorded in the survey, including 4 species of national first-class protected wild animals: except yellow-breasted pomfret, oriental white stork and black-faced spoonbill, black stork appeared in the reserve for the first time; In addition, there are 20 species of national second-class key protected wild animals: Pheasant, White-breasted Jade, Aurora, Lark, Black Kite, Peregrine Falcon, Red-footed Falcon, Swallow, White-tailed Cocktail, Sparrow Eagle, Hongyan, Little Swan, Little White-fronted Goose, Yuanyang, White-fronted Goose and baikal teal.

New achievements: the ecological environment quality of the reserve is steadily improving.

According to Zhang Ruizhong, this dynamic survey found that there are abundant wetland plants in and around the reserve. A total of 367 species of wetland plants were collected and identified, including 5 species of gymnosperms, 5 species of pteridophytes, 267 species of angiosperms and 90 species of angiosperms. It is divided into 4 vegetation types, 9 vegetation types and 49 formations. At the same time, two national first-class protected wild plants, Metasequoia glyptostroboides and Ginkgo biloba, and two national second-class protected wild plants, namely, Metasequoia glyptostroboides, Ginkgo biloba and Cinnamomum camphora, were also discovered, among which Metasequoia glyptostroboides and Cinnamomum camphora were all cultivated artificially.

The survey shows that the water environment quality in the reserve is good. The five main physical and chemical indexes of water body, such as pH value, dissolved oxygen and total phosphorus, have reached Class II value of fishery water quality standard and surface water environmental quality standard. The average comprehensive nutritional status index of the sampled water bodies is 47.03, and the comprehensive nutritional status index of 63% of the water samples is in the range of 30-50.

The dynamic investigation was organized and implemented by the Nanjing Yangtze finless porpoise provincial nature reserve management station, and undertaken by the Freshwater Fisheries Research Center of the Chinese Academy of Fishery Sciences and Nanjing Normal University.

Liu Kai, a researcher at the Freshwater Fisheries Research Center of the Chinese Academy of Fishery Sciences, who is in charge of the dynamic survey, believes that the overall survey results show that the ecological environment quality of the nature reserve is steadily improving, the number of Yangtze finless porpoises is increasing, and the biodiversity is generally stable.

The reporter learned that since its establishment, the nature reserve has intensively launched a number of innovative measures for the protection of finless porpoises, such as the national initiative and the introduction of the "List of Responsibilities for the Protection of Yangtze Finless Porpoises in Nanjing" to establish a long-term coordination mechanism for the protection of finless porpoises; The decision on strengthening the protection of the Yangtze finless porpoise was promulgated and implemented in conjunction with the inter-provincial collaborative legislation of Zhenjiang and Maanshan provinces, which became the first basin-based regional collaborative protection legislation for a single species in China; Gradually build a normalized protection system for patrol and rescue, as well as the first application of the "water-underwater-shoreline" monitoring system in China. At present, combined with the study of finless porpoise’s activity habits and habitat environment, the protected area is still improving the level of intelligent, accurate and scientific protection.

The immune system can also get sick and even be life-threatening.

　　"Wang Lin, a qigong master, died of multiple organ failure due to ANCA-related vasculitis and autoimmune peripheral neuritis." This news brought "immune system diseases" into public view.

　　In the course of millions of years of evolution, human beings have formed a complex defense mechanism against foreign microorganisms and harmful substances. This defense mechanism has a clear division of labor and powerful functions, and can cope with the changes and challenges of the living environment. We call it "immune system".

　　But like other organs of the human body, the immune system will get sick and even be life-threatening. What’s wrong with this?

　　The innate immune system is derived from invertebrates.

　　The normal immune system consists of immune organs, immune cells and immune molecules.

　　Immune organs mainly refer to lymph nodes, spleen and thymus. Among immune cells, there are cells involved in immune response and immune regulation, mainly T lymphocytes and B lymphocytes. Among them, T lymphocytes come from thymus and play an important role in the regulation of immune response, while B lymphocytes are mainly involved in the formation of antibodies, including autoantibodies. Immune molecules are mostly synthesized and secreted by immune cells, which play an important role in the initiation and regulation of immune response and the attack on tissues and organs.

　　Humans have inherited the innate immune system of invertebrates in the process of evolution. This ancient defense system identifies invading external pathogenic microorganisms through germinal cells widely distributed in human immune organs; Through the macrophages of innate immune system, we can identify the virulence factors of main microorganisms, directly kill pathogens and protect human body. This kind of protection is an immune response that is quickly started and mobilized, and it is non-specific. That is to say, innate immunity is reacted and cleared in the same way for any foreign microbial invasion, so it is not the most effective.

　　However, while the innate immune system slows down infection, it will activate the acquired immune system-the acquired immune system. Acquired immunity will react specifically to foreign antigens or pathogens. After the first contact with antigens, the second contact with the same antigen can trigger a faster and stronger immune response, attack foreign antigens and remove them from the body.

　　In short, the normal immune system has three important characteristics: one is a variety of antigen receptor libraries, which can identify almost endless pathogens; The second is immune memory, which can initiate a rapid memory immune response, which is why we can be immune for life after injecting some vaccines; The third is immune tolerance to avoid immune damage to normal self-tissues.

　　Distinguish the Immune Tolerance of "Friend or Foe"

　　The most important function of so-called "immunity" is to identify "self" and "non-self", and it will not produce immune response to its own tissue components, which is called immune tolerance.

　　The human body can achieve immune tolerance through autoantigen isolation, so that its own tissues can not contact with the immune system, and the specific immunity of related T or B cells is "unresponsive". For the "non-ego" of foreign microorganisms or foreign tissues and organs introduced into the body, the immune system will protect the body from the damage of intruders by starting an immune "response" reaction.

　　Therefore, if the function of the immune system is disordered and the normal components of the body are regarded as foreign substances, autoimmune diseases will occur. From the pathogenesis, autoimmune diseases are diseases caused by the breaking of immune tolerance. The immune system cannot correctly identify "self" and "non-self", thus attacking its own tissues and organs.

　　In addition, the dysfunction of T cells with the function of regulating immunity can not stop or inhibit the immune response in time, which will also lead to the occurrence of autoimmune reaction.

　　Autoimmune diseases are related to genes.

　　It is necessary for us to understand the role of genes in autoimmune diseases.

　　In the process of immune response, many auxiliary molecules are needed to produce specific immune response against foreign microbial antigens. Among them, the most important helper molecule is MHC (major histocompatibility complex). T cells can be activated and the subsequent immune response can be initiated only after the foreign microbial antigen and MHC molecules combine to form a complex.

　　MHC is usually called human leukocyte antigen (HLA), and its related gene is located on chromosome 6. HLA antigen complex is regarded as the genetic determinant of immune activation. In other words, HLA mainly determines the characteristics of immune response and the occurrence and development direction of immune response. At present, more and more genetic studies show that HLA determines a person’s susceptibility to many diseases, especially autoimmune diseases. People who carry these susceptibility genes have a much higher risk of autoimmune diseases than the general population.

　　In reality, scientists have found some susceptible genes related to autoimmune diseases. It is certain that human immune response is influenced by genetic factors, and some autoimmune diseases have genetic tendencies.

　　People with genetic susceptibility should beware of "molecular simulation"

　　Generally speaking, autoimmune diseases often occur in genetically susceptible people. Their immune cells have abnormal functions, and they will get sick when they encounter suitable external triggers.

　　These external triggers include microorganisms, such as some bacterial or viral infections, and some harmful substances in the environment, such as smoking. For example, some microbial antigens, such as staphylococcal protein A and staphylococcal enterotoxin, can stimulate T or B cells, making these cells transform into autoreactive T or B cells, leading to autoimmune reactions.

　　In addition, because the components of some microorganisms are similar to the fragments in normal human tissues, the normal immune response to foreign microorganisms will activate autoimmune lymphocytes in the form of "molecular simulation" or cross-reaction, causing autoimmune reactions. The most typical autoimmune disease caused by molecular simulation is rheumatic fever. The anti-Streptococcus M protein antibodies in rheumatic fever cross-react with actin, laminin and antigens of nervous system, and start inflammatory reaction in the heart, causing rheumatic heart disease. If these antibodies enter the brain tissue, they can cause chorea. Studies have shown that in type I diabetes, rheumatoid arthritis and multiple sclerosis, there is a "molecular simulation" effect between this microbial protein and human tissues.

　　In a word, the immune system is a delicate and complex barrier to protect the body from external harm. However, the pathogenesis of autoimmune diseases is very complicated, so far, the exact pathogenesis of a considerable number of diseases has not been fully studied. It should be noted that after the occurrence of autoimmune diseases, patients should seek medical advice in time, diagnose and treat early, so as to avoid irreversible damage to important organs. (Tian Xinping, Peking Union Medical College Hospital)

CCTV News:Today (October 1st), China Petroleum announced that it is a 10-million-ton refining and chemical integration project — — All the main devices of Guangdong Petrochemical Refining and Chemical Integration Project have been installed, and they have been fully transferred to the production preparation stage.

Guangdong Petrochemical Refining and Chemical Integration Project is located in Jieyang City, Guangdong Province, covering an area of 920 hectares. It can refine 20 million tons of oil, produce 2.6 million tons of aromatic hydrocarbons and produce 1.2 million tons of ethylene every year.

The aromatic hydrocarbon plant, polypropylene plant and styrene plant of the integrated project are the largest in the world. Compared with oil refining enterprises of the same scale, the added value of products of oil refining integrated enterprises can be increased by 25%, and the energy consumption can be reduced by about 15%.

　　　　　　 The construction of the project started at the end of 2018, and it is planned to be put into operation at the end of October this year. It is estimated that the annual sales revenue will reach 82 billion yuan, and the profit and tax will be about 20 billion yuan. At the same time, it will give play to the leading industry to further meet the demand for chemical raw materials in Greater Bay Area, especially to supply synthetic resin materials for household appliances, electronics, toys and other industries in the Pearl River Delta region, greatly improving the localization rate. Up to now, it has successfully signed contracts to introduce high-quality chemical industry projects such as new materials, fine chemicals and biomedicine in the middle and lower reaches of petrochemical industry with a total planned investment of nearly 100 billion yuan.

Guangdong Petrochemical Refining & Chemical Integration Project is a world-class "Refining & Chemical Giant", which has created many world firsts in the process of design and construction. Let’s learn about it through a short film.

More than 600,000 design drawings, 10,418 sets of process equipment, 4.11 million cubic meters of concrete, 270,000 tons of steel structures and 3,377 kilometers of process pipelines. The concrete used in the project can pour 22 nests, the steel structure can build 41 water cubes, and the pipeline can be laid from Beijing to Guangdong.

The main crane of the world’s largest 5,000-ton gantry crane and the tail crane of the largest 4,000-ton crawler crane in China have successfully hoisted the 4,000-ton tower as a whole, setting a new record for hoisting the heaviest tower in Asia.

The project has created more than 100 domestic and foreign industry records, such as "dressing and wearing a hat" in Asia’s largest aromatic raffinate tower in 29 days and two cranes in ethylene plant towers in three days.

After putting into production, the annual sales revenue can reach 82 billion yuan, and the profit and tax will be about 20 billion yuan, which is of great significance to improve the balance and coordination of regional development in Guangdong Province.

　　Xinhuanet Nanjing, February 25th (Reporter Wang Junyong) Recently, Nanjing police successfully cracked the case of Wang and others who were listed and supervised by the Ministry of Public Security for manufacturing and selling "Miss pilfer date trojan", busted a mega-cyber hacker criminal gang and arrested 17 suspects.

　　On May 6, 2008, the network police detachment of Nanjing Public Security Bureau received a report from Jiangsu Provincial Water Resources Department, saying that the page of Jiangsu Water Resources Network, a government website which is mainly responsible for handling official documents and releasing public opinions, could not be opened, and it was suspected that it was hacked. The main leaders of the public security organs in Jiangsu Province and Nanjing City quickly gave instructions to solve the case quickly, and the Nanjing police set up a task force.

　　From May to June 2008, the task force arrested six suspects, including He Mou, in Yichang, Hubei and Guilin, Guangxi, and successfully detected the attack on the website of the Water Resources Department. At this point, the task force found that the purpose of these people attacking the website of the Water Resources Department was to implant a Trojan hacking program called "Miss Da" on the website. And this "Miss Big" Trojan has already stolen many online game accounts. This situation attracted the attention of the Ministry of Public Security, and it was listed as a case supervised by the Ministry of Public Security, and Nanjing Public Security Bureau was appointed to take charge of this case.

　　After investigation, the task force captured 10 people, including Wang, the organizer of the "Miss Da" series Trojan gang, Long, the author and Zhou, the general sales agent in Shanghai and Sichuan.

　　According to the account, the criminal suspect Wang, for the purpose of making profits, has hired Long to compile more than 40 pilfer date trojan for domestic popular online games since the second half of 2006. We have sold a series of Trojans named "Big Miss" through the general agent of Zhou and others on the Internet.

　　The criminal suspects who bought the "Miss Da" Trojan stole the number of more than 40 mainstream online games, such as "QQ free fantasy" and "Legend of Wulin", which accounted for more than 60% of the trojan horse hacking market in China, which was extremely harmful. These people first implant illegal links into regular websites, and users will automatically download pilfer date trojan after visiting the websites. When the user logs into the game account, the game account will be automatically stolen. The suspect directly sells the stolen account or hires people to transfer the virtual property in the account and then sells it for profit.

　　After investigation, Wang has made an illegal profit of more than 14 million yuan by selling the "Miss Big" Trojan. The police believe that the criminal suspect’s behavior of spreading Trojan horse programs through the Internet has partially lost the normal communication function between the server and the user’s client computer system of online game companies, which has seriously affected the normal operation of computer information systems of more than 40 online game operating companies and caused great economic losses.

Editor: Yan Bin

Senior three students are working hard to prepare for the exam.

In order to decompress students,

The teachers also tried their best,

Inspirational, relaxed, surprise …

In the most romantic way,

Passing courage and strength to the children silently.

Super fun!

The headmaster and teacher play the role of tiger to decompress the students!

The college entrance examination is approaching,

Wang Jianyong, vice president of Fan Centralized School in Huai ‘an, Jiangsu Province, took 11 teachers.

In the evening self-study, I quietly dressed as 12 tigers and walked into the classroom of senior three.

Each class sends joy and blessings to the students.

Twelve "tigers" changed their serious faces.

Show your playful and lovely side,

Everywhere I went, there was laughter and laughter.

Surprised and moved the students.

Teacher Zhao Jinrui introduced,

Twelve tigers symbolize the students’ 12 years of hard work.

In the Year of the Tiger, I send blessings to everyone in the image of a tiger.

I hope that students will have a broader world to display their talents in the future.

Make more contributions to the motherland and hometown.

The students said:

"To see such a lovely teacher,

We are very happy! "

Netizens have praised: This school spirit is really good.

Decompression of wheat harvest

I wish the college entrance examination a bumper harvest!

Recently,

Senior three students from Guanhu Senior High School in Pizhou, Xuzhou, work together.

Harvest wheat on campus.

The school used the idle space in the school to grow wheat.

Every May, senior three students will be organized to experience the wheat harvest.

The harvested wheat will be provided to students for free after processing.

The school said,

I hope to help you relieve the pressure of study.

I also wish you a bumper harvest in the college entrance examination.

Warm heart decompression game

Help candidates release pressure!

In order to relieve the pressure of candidates’ college entrance examination,

Recently, Hengshui No.2 Middle School in Hebei Province

Carry out interesting decompression activities such as hooping, kicking shuttlecock and skipping rope.

Teachers prepared zongzi, cakes, pig’s trotters and other gifts.

There is a beautiful implication of high school, promotion step by step and to be no.1.

The teacher said that he hoped that in this way,

Help senior three candidates to release stress after preparing for the exam.

Make them welcome the college entrance examination with a relaxed, optimistic and confident attitude.

After reading the fancy decompression method of teachers,

Xiaobian also compiled a set for the candidates.

Small coup of psychological adjustment before the exam,

Teachers and parents share it with their children!

01

Pure in thought

We should eliminate all unnecessary external information, stay away from electronic products and recreational ways, reduce external interference, have purer thoughts, single goals, more regular work and rest, and have a more scientific rest.

02

Stabilize mood

A stable mood is a good mood. We should adjust our emotions and keep them in a stable state.

Students should compare more with themselves and less with their classmates, be a "good loser" and have a strong heart. To do this, on the one hand, we should know how to release stress in a healthy way, on the other hand, we should combine work and rest according to our physical condition, do not fight fatigue and maintain a good mental state.

03

Moderate exercise

Physical exercise helps to release stress and improve learning efficiency. Every student should insist on moderate exercise every day, maintain a certain intensity of exercise every day, and at the same time, subtly cultivate the will quality of challenging difficulties and not easily giving up during exercise.

04

Breaking Her Will

There is a lot of self-study time in the late third year of senior high school, which is mainly used for completing homework and self-review.

For the dominant disciplines, we mainly adopt the way of vertical breakthrough, and strive to build a discipline knowledge framework system, supplemented by review of key questions and error-prone warnings; For inferior disciplines, we mainly adopt the way of horizontal breakthrough, choose the high-frequency test sites of the college entrance examination to make special breakthroughs, and dare and be willing to use the whole time to break through the most important topics; For secondary disciplines, vertical breakthrough and horizontal breakthrough can be combined.

05

Keep the rhythm

Learning rhythm, examination rhythm, exercise rhythm and sleep rhythm should be kept as scientific and regular as possible.

Take the sleep rhythm as an example: you can’t squeeze the sleep time for study without a bottom line, but you want to get the ideal academic performance by extending the study time, which will only lead to inefficiency the next day, because it can only make up for it by further squeezing the rest time, thus forming a vicious circle. Teachers, students and parents should attach great importance to the positive role of scientific sleep in promoting their studies and form a virtuous circle of sleep and efficient learning.

06

Always be careful

Taking answering questions in the examination room as an example, developing the habit of writing neatly and standardizing answering questions can avoid unnecessary low-level mistakes; Getting into the habit of drafting in different regions can improve the efficiency of inspection and make it easier to find out the mistakes caused by carelessness.

The habit of examination is particularly important. Examination is the most direct way to fight against mistakes. We should integrate examination into the examination process, regard examination as an integral part of the examination, and learn to mark uncertain questions in the process of doing the questions, and give priority to the marked questions. These habits are the embodiment of care.

07

believe in oneself

The road to the college entrance examination is doomed to be lonely and difficult. You must believe in yourself and stick to your dreams. No one will laugh at how high your goal is. People will only laugh at how your efforts do not match your goal.

Gan Kun is undecided, you and I are both dark horses,

Cheer for all the shining dreams!

Sources: China Education News, People’s Daily, China Youth Daily, Weibo @ Jiangsu News, Weibo @ Litchi News, Weibo @ Shanhai Video, etc.