Cctv news: You can complete the provident fund withdrawal business online with your personal ID card; If you don’t leave home and brush your face at home, you can wait for the money to arrive, and you can also withdraw the provident fund to pay the rent … … Recently, many places in China have issued a new policy of withdrawing provident funds, which is related to everyone’s wallet. Come and learn more about it!

　　Beijing

　　Individuals can directly withdraw provident fund by mobile phone.

　　From 0: 00 on April 23rd to 24: 00 on May 9th, Beijing Provident Fund Management Center will upgrade its system. During the upgrade period, the deposit and withdrawal of provident fund will be suspended. After the system upgrade, the public canCheck the balance and loans of personal provident fund through the "Beijing Provident Fund" APP, Alipay Life Number and WeChat WeChat official account "Beijing Provident Fund".

　　Before the end of this year,The above-mentioned client or WeChat official account can realize functions such as personal provident fund withdrawal.. In the future, the withdrawal of provident fund does not need to be handled by the unit manager, but can be handled directly by individuals. In addition, after the opening of personal online business, houses purchased in Beijing and traded through the online signing system of the Housing Construction Committee can complete the provident fund withdrawal business online with their personal ID cards without submitting other certificates or materials.

　　Zhejiang(Province)

　　You can withdraw the provident fund by "brushing your face" and "zero" materials at home.

　　"Sitting at home and brushing your face, you can wait for the money to arrive." According to the news of Zhejiang Provincial Provident Fund Center, as long as the employees who have paid the provident fund in Zhejiang provincial units can now "brush their faces" to handle businesses such as no-house withdrawal, retirement withdrawal, and the city’s own purchase of housing to withdraw the provident fund. You don’t have to run once, and you don’t have to bring any materials, which is the first in the country.

　　The specific operation is: in"Alipay" selects "City Service", click in turn."Provident Fund-Provident Fund Query and Extraction-Zhejiang Provincial Unit Provident Fund", and then "Brush Your Face". After a few minutes of operation, you can wait for the provident fund to arrive.

　　Jiangsu Nantong

　　No "withdrawal slip" will be required for provident fund withdrawal.

　　On the 3 rd, Nantong City Housing Provident Fund Management Center of Jiangsu Province issued a notice. Since April 1, 2018, employees in Nantong City have handled the housing provident fund withdrawal business.It is no longer necessary to provide the Application for Withdrawal of Housing Provident Fund (i.e. "Withdrawal Form of Provident Fund")., other extraction conditions remain unchanged.

　　Shanghai

　　You can withdraw the provident fund to pay the rent "without leaving home"

　　Recently, the Shanghai Housing Provident Fund Management Committee issued a notice saying that since October 1, 2018 (inclusive), employees can only withdraw the housing provident fund to pay the rent after filing online through the housing rental public service platform.The monthly withdrawal amount of each household (including single family) shall not exceed the actual rent expenditure of the month., the maximum monthly withdrawal limit is raised to 3000 yuan.

　　 Harbin

　　Will automatically withdraw the provident fund to repay the loan on a monthly basis.

　　Recently, Harbin Housing Provident Fund Management Center officially launched "Harbin Housing Commercial Loan" and "Harbin Industry (provincial, agricultural reclamation, electric power, railway) sub-center housing provident fund loan" to automatically withdraw the provident fund to repay the loan on a monthly basis. At this stage, data docking and system testing are underway. At that time, the employees who pay the housing provident fund in Harbin only need to sign the Agreement on Monthly Withdrawal of Housing Provident Fund, and there will be no need to go to the window to go back and forth to withdraw the provident fund and repay the housing loan.The provident fund center directly transfers the extracted provident fund to the repayment card (discount) of the employee bank on a monthly basis through the business system for repayment of loans.

　　The medical staff are working. Xinhua news agency

　　Production of antiviral drugs. Xinhua news agency

　　editorial comment/note

　　How did the virus originate? What are scientists doing in developing drugs against Covid-19? It is the top priority for Chinese researchers to develop effective clinical drugs for Covid-19, improve the cure rate and reduce the mortality rate. On February 15th, Zhang Xinmin, director of the Biological Center of the Ministry of Science and Technology, introduced that the drug screening and treatment program had made positive progress at the press conference held by the the State Council Joint Prevention and Control Mechanism on the latest progress of drug research and development and scientific research in Covid-19. The Ministry of Science and Technology organized a national excellent scientific research team to screen more than 70,000 drugs or compounds by computer simulation screening and in vitro enzyme activity test. At present, The scientific research team has focused on a few drugs, and a number of drugs, such as chloroquine phosphate, lundixivir, and farpiravir, have successively carried out clinical trials. At present, some drugs have initially shown good clinical efficacy. This issue focuses on the origin of the virus, drug research and development, and psychological anti-epidemic.

　

　　The structure of most viruses is very simple. Basically, it is a shell made of protein wrapped with some genetic material, which is no different from dead things at ordinary times. Once infected cells, they inject their own genes into the host cells and use the host cells to replicate themselves to produce new viruses. Is the virus a living thing? Where did they come from? Below, let’s take a look at three hypotheses about the origin of the virus.

　　Hypothesis 1 Ancient macromolecules Some macromolecules, such as RNA, DNA and protein, begin to replicate themselves independently or cooperatively, and this stage can be called "molecular life". However, in a peaceful molecular life, there is a different kind, that is, some molecular life, including LUCA, the latest common ancestor of all living things, which has developed a structure that has changed the law of life, that is, cells. Cells with membrane structure can better protect delicate core macromolecules such as RNA and protein, which greatly enhances the adaptability of these organisms, which means that they will rub their original molecular life on the ground. There is a hypothesis (The Virus-First Hypothesis) that the virus is the "adherents" of the primitive molecular life world. This hypothesis was once very popular, after all, the structure of viruses is so simple, even crude, and their differences from cell life are so great.

　　Some viruses can form crystals after purification, which is unimaginable for cell biology. More solid evidence comes from "Virusoid", which is an RNA molecule. Pseudovirus can’t infect cells directly, but it can infect viruses. To be exact, it can copy itself and spread itself by hitchhiking when some viruses infect cells, which can cause some diseases such as human hepatitis D.

　　Hypothesis 2 The gene of "defection" Genes can also defect? Yes, in The Progressive Hypothesis, genes will do anything to keep themselves alive.

　　There is a small circular DNA called "plasmid" widely in bacteria. These genes are basically a group of wage earners and temporary workers. Bacteria can absorb them from the environment for their own use at any time, and they can also drive them away at any time.

　　In many bacteria, in addition to their original DNA, there are often some small fragments of circular DNA, which are called plasmids. So in the long evolution, some plasmids learned one thing: we should not work all our lives! These plasmids changed from wage earners to wage earners, which in turn hijacked their bacterial boss and took away all the nutrients of bacteria to replicate themselves. Over time, some plasmids become viruses.

　　Bacteria often suffer from a kind of virus infection called "phage". Some people think that phage comes from plasmid. The cells and bacteria of human beings and all animals and plants are very different. We all belong to "eukaryotes". There are no plasmids like bacteria in the cells, but there are still some genes waiting to move. They refused to stay on the chromosome, but jumped around in the nucleus, running to this chromosome for a while and running to that chromosome for a while. However, these naughty genes do have a name of sage like type — — Transposon (transposon)

　　According to the detection of molecular biology, many transposons have very similar gene sequences to viruses, and the mechanism of integrating themselves into the chromosomes of host cells is also highly similar. In particular, the "Retrotransposon" among them is almost as similar as some viruses, and the only difference is that these transposons cannot migrate from cell to cell like viruses.

　　However, the origin of viruses is still confusing here, because they don’t follow the evolutionary model of general organisms at all.

　　The general process of virus infection is: inject your own genes into the host cells, then use the host cells to copy your own genes, and make all kinds of materials needed to construct virus particles. Finally, manipulate the cells to package all parts of virus particles together with the virus genes into new virus particles and release them to infect other cells. But in this process, the virus is exchanging genes with various organisms all the time.

　　For example, when a virus directs a host cell to package virus particles, it sometimes packages some host cell DNA, or accidentally leaves a little bit of its own gene in the host cell. There is a gene in mammals to prevent the maternal immune system from attacking the fetus, that is, a virus accidentally landed in our cells more than 100 million years ago. When the virus spreads across species, it often leads to the transfer of genes from one species to another.

　　Hypothesis 3 Decaying cellular organisms. After entering the 21st century, a series of discoveries began to make scientists more aware that there are other possibilities for the origin of the virus.

　　In 2003, scientists discovered a very unreasonable virus — — "Mimivirus", the size of this virus has reached 0.4 to 0.5 microns, which is almost the same as bacteria under the microscope. The coronavirus that caused this epidemic is considered to be a relatively large type of virus, and its size is less than 0.1 micron.

　　In 2008, scientists discovered the second big virus, and named it "Mamavirus". Since then, one kind of "Giant Virus" has appeared in human vision one after another. By the time Pandoravirus was discovered in 2013, the record of the largest virus was even more than 1 micron.

　　Pandora virus, the largest known virus, looks almost the same as a bacterium.

　　Since then, the boundaries between viruses and some single-celled organisms have become blurred. For example, the structure and genes of Bacteroides virus are very similar to those of a single-celled organism called archaea. The only difference is that Bacteroides virus has lost a part of the key genes that independently complete cell division, so it has to parasitize in the cells of other organisms and use the cells of the host to grow and reproduce.

　　So there is the third hypothesis of the origin of the virus (The Regressive Hypothesis), which holds that the virus is essentially a degenerate creature. Some single-celled organisms gradually degenerate most of their cell structures in the long-term parasitic life, and finally become this "living dead" general appearance, and the flow like bacteroides virus is an archaea that has just begun to degenerate.

　　Why do deadly viruses always come from wild animals? Let’s analyze it from the perspective of evolution.

　　The "best" virus does not cause too serious symptoms (otherwise it will kill the host itself), but it should not be too gentle (after all, the host is often infected with other viruses at the same time, so it is still necessary to grab resources). Therefore, in the long evolution, this game will promote the virus to finally reach a certain tacit understanding with the host. For example, human beings and rhinoviruses that may cause the common cold belong to this relationship.

　　However, the virus will mutate, and some mutations will cause the host of the virus to change. Without the tacit understanding of long-term running-in between the virus and the new host, there will be the problem of "not paying attention to it", and some of them will bring fatal diseases to the host.

　　In the long-term evolution, human beings have reached a perfect tacit understanding with the viruses that accompanied them all the way from ancient ancestors, and the viruses from livestock, such as measles and flu, are not perfect, but they are somewhat tacit, so they rarely cause serious epidemics. Only the virus from wild animals has nothing to do with human beings, so almost all the diseases that caused the great plague came from wild animals. Therefore, I hope everyone can stay away from wild animals, including stray animals, and don’t raise or eat wild animals.

　　(Author: Tang Cheng Author: Center for Excellence and Innovation of Brain Science and Intelligent Technology, China Academy of Sciences)

　　[Car History] When it comes to its classic models, I’m afraid there is no one who doesn’t know the name except the familiar ones. The Beatles laid a solid foundation for the Volkswagen brand, and Dave became the spiritual and material double pillar of the Volkswagen Group. Just like the popular saying that "with golf (), there will be all models of the public", golf has become synonymous with the public. Since its birth in 1974, after 39 years of development, today’s golf has evolved into the seventh generation. Although most people have already memorized the history of golf, it doesn’t prevent you from revisiting the legendary development history of this Volkswagen classic model again, and maybe you can gain something new.

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The background of golf: replacing the exhausted Beetle (Volkswagen EA-276 prototype)

　　Although the Beetle has brought great honor and benefits to the public, it has not changed much since it was officially born in 1938. At the end of 1960s, the sales volume of the Beetle dropped sharply. Volkswagen knew that the exhausted Beetle could not meet the people’s demand for the "national car" in terms of technology and the utilization of the interior space, and the successor to develop the "national car" was officially put on the agenda. In 1969, two prototypes, EA-266 and EA-276, were born one after another. Because EA-266 was placed in the lower rear seat, it was quickly eliminated by the noise and smell from the engine, while EA-276 with layout was successfully promoted. The car was equipped with a 1.5-liter horizontally opposed four-cylinder engine with 44 horsepower, and its square shape was probably not very pleasing. This is the prototype of Volkswagen Golf.

Note: Many people mistakenly think that the name of Golf comes from Golf. In fact, the naming method of Golf follows the consistent style of Volkswagen, that is, many of its models are named after the wind, as we know, Santana and others, and Golf comes from a warm current in the Gulf of Mexico.

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The First Generation Golf Mk1(Typ 17)——1974-1983
Classic, the first "hatchback"

　　In May 1974, the first generation of golf officially entered people’s sight. Compared with the slightly rigid shape of EA-276 prototype, the "origami" design concept put forward by Italian car designer Giorgetto endowed the first generation of golf with an indelible classic shape. Maybe you don’t like its square-headed, square-brained shape, but when you look at it again today, you will find that this simple line is so intriguing. The whole plastic air intake grille is inlaid with two round headlights, and the front bumper hanging on the front of the car is shaped like a chopstick. Although it is a new "national car", chrome decoration is still full of air intake grille, bumper edge and body waist line. (Click to enter the biography of Giorgetto, the master of automobile design)

　　The first generation golf adopted the same hatchback shape as the prototype EA-276, and the concept of "hatchback" was first applied by golf and introduced into the field of automobile design. Compared with the prototype, the angle of the trunk cover of golf is more inclined. "Chopsticks" are always a pair, not one. Except for the turn signals on both sides of the front bumper, the front and rear bumpers are strikingly similar in size and shape, and the prominent wheel eyebrows make their simple shape have a sense of hierarchy. The first generation of golf is divided into two types: two-door hatchback and four-door hatchback. Taking the golf hatchback version as an example, its vehicle size is 3705mm long, 1610mm wide, 1395mm high and 2400mm high, and its weight is only 790kg.

　　The interior design of the first generation golf seems a bit too simple as its modeling. The Volkswagen "Wolfsburg" logo was placed in the center of the two-spoke steering wheel. The left side of the double-barrel instrument panel was not a tachometer, but a "disguised" clock. The water temperature and fuel gauge were located at 12 o’clock and 6 o’clock respectively, and the right side was a speedometer. The only thing that can make people shine in the car is the silver plaque on the center console. A large area under the T-shaped area of the center console has been ruthlessly wasted. Interestingly, the gear sign is placed above the cigarette lighter near the co-pilot’s side. For beginners, this design will inevitably make people crazy.

　　The first generation of golf adopts the structure of front and back half. Compared with the previous "national car" Beetle, golf has been greatly improved in maneuverability and practicality. The configuration of the first generation golf can only be considered enough. All you can see in the car are simple and practical configurations such as radio, air conditioner and hand-cranked window. In addition, Volkswagen also equipped the first generation of golf with front wheel disc brake system and rear wheel drum brake system. These configurations may not be worth mentioning at present, but as the successor of the Beatles, the overall quality of golf is still satisfactory.

　　In terms of power, the first-generation golf, which was originally launched, was only equipped with a 1.1-liter inline four-cylinder engine, with a maximum of 50 horsepower and a maximum of 78 N m. Since then, Volkswagen has successively launched golf models with 1.3 liters, 1.5 liters, 1.6 liters, 1.7 liters, 1.5 liters and 1.6 liters. Among them, the 1.6-liter inline four-cylinder gasoline engine has a maximum power of 86 HP (63kW)/5600rpm and a maximum torque of 127 N m/3200 rpm, which is matched with the engine at 4, 5 and 3 speeds.

　　In March, 1975, the first generation of sports golf model-Golf GTI appeared, and it was officially listed in June, 1976. The first generation of GTI also has two models, three-door and five-door hatchback, for consumers to choose from. The original intention of GTI is to let consumers enjoy driving even if they buy economical cars. In order to be different from ordinary golf, GTI, as a sports model, has made some optimization in appearance details, the most obvious of which is a circle of red decorative lines on the periphery of the front air intake grille, with a black Volkswagen logo in the center, the "GTI" on the side is particularly conspicuous, and the front and rear bumpers are also chrome-plated. At the same time, the plastic black spoiler under the front of the car complements the black wheel eyebrows, which further highlights the exclusive sense of GTI.

　　Volkswagen has rendered the sporty atmosphere of the first generation GTI interior to the extreme. The monotonous two-spoke steering wheel on the regular version was replaced by a three-spoke competitive steering wheel with the logo of Wolfsburg. What about the clock on the left side of the original dashboard? For GTI, which pursues sports, the tachometer is more pragmatic. In order not to destroy the overall color of the interior, the silver center console panel has also been changed to black. Before, the sealed part under the center console was changed into a storage space. The oil temperature gauge on the left side below also reminds you at all times that this is a sporty car, and the forgotten clock is placed on the right side of the oil temperature gauge. The most exciting thing for fans is the Golf ball-shaped stopper. Is this to match the name of Golf? Who cares! What fans are after is an excellent feel.

　　A sporty appearance alone is definitely not enough for fans to pay for it willingly. The first generation GTI is equipped with a 1.6-liter inline four-cylinder naturally aspirated fuel injection engine, with a maximum power of 110 HP (81 kW)/6,100 rpm and a maximum torque of 140 N m/5,000 rpm. For a GTI weighing only 810kg, its acceleration time of 0-100km/h is only 9.2. Low vehicle weight, solid chassis and strong power make GTI known as "". With the success of the first generation of golf GTI, other manufacturers have also launched their own "small steel cannon" models, and golf has once again become the leader of the new trend in the industry.

　　The original intention of Volkswagen to launch golf GTI is only to participate in the competition. Volkswagen originally planned to produce 5,000 golf GTIs to meet the qualification of production cars stipulated by the competition. I never thought that the first generation of golf GTI would be sought after by fans as soon as it was launched, so Volkswagen continued to increase production to meet the market demand for this "small steel gun". Since its birth in 1975, the first generation of golf GTI has produced about 530,000 sets, which has since established GTI’s unshakable position.

　　As the sales of the first generation of golf are rising, it has increased the confidence of the public in developing new models. In 1979, the golf convertible version derived from the first generation of golf was officially unveiled. The birth of the golf convertible made people realize that the original economical car can be so romantic. The first-generation golf convertible version uses a soft-top convertible that can be folded manually, and the horizontal position of B-pillar can effectively increase the strength of the whole vehicle. Volkswagen has made some modifications to the front and rear bumpers of the first-generation golf convertible version, and the black plastic decoration added to the rear license plate position makes the rear of the car look less monotonous.

　　In 1975, Volkswagen introduced the first generation of Golf to the North American market and assembled it in the Volkswagen westmorland factory in the United States. The American version was named Rabbit instead of Golf. In order to comply with safety regulations, Rabbit has adopted an "extended" bumper, which is also a major feature of European models entering the North American market. Due to the use of soft suspension and too cheap materials, the quality of Rabbit is extremely unstable, which also makes the German public angry. In 1980, North American Volkswagen introduced a modified model of Rabbit, which changed the original round headlights into a square style, while the convertible version of Rabbit still used round headlights.

　　In 1981, Volkswagen launched the Rabbit version, a derivative model of Rabbit. The car adopts a double-door design, and the wheelbase is lengthened and then equipped with a rear cargo compartment. If you are used to the ordinary version of the car and look at the pickup version, you will find it very different. The dimensions of the Rabbit pickup truck version are 4380mm long, 1640mm wide, 1490mm high and 2625mm wheelbase. In 1983, Volkswagen introduced Rabbit GTI. Unlike Golf GTI, Rabbit GTI equipped with a 1.8-liter inline four-cylinder engine has only 91 horsepower (67kW), which obviously does not meet the definition of "small steel gun". Rabbit GTI exported to Canada is all made in Germany, equipped with a 110 HP (82kW) 1.8-liter inline four-cylinder engine.

　　In 1983, Volkswagen introduced the first generation of small modified golf models. The most striking feature of the modified golf is the "four-eye" headlights, which are more full in taillight style and more in line with the trend at that time. Interestingly, the first generation of golf convertible was not modified until 1988. Except for the four-round headlights, the new bumper with the same color as the car body is more full, and the application of side skirts makes the visual effect of the whole car lower. Many improvements have made the modified golf convertible look energetic.

　　Compared with the North American version of golf, the South African version of golf-Volkswagen Citi is even more "wonderful". The car has three power combinations, namely 86 horsepower 1.4 liters, 102 horsepower 1.6 liters and 124 horsepower 1.8 liters in-line four-cylinder engines. From 1984 to 2009, it was officially discontinued. After repeated "face-lifting" production, although the interior design of Volkswagen Citi keeps pace with the times, its appearance will always maintain the original essence of the first generation of golf, and the Rabbit pickup truck model in North America market was named Caddy for production in South Africa. During the 25-year production cycle, a total of 377,484 Volkswagen Citi rolled off the production line. In Mexico, the first generation of golf was named Caribe for sale. From its birth in 1974 to its discontinuation in 1983 (Citi didn’t discontinue production until 2009), the first generation of golf sold a total of 6,780,050 sets worldwide. Such impressive sales laid a solid foundation for its future development, and the new "national car" also gained a firm foothold.