Does the amount of cash in a lost wallet influence how likely a person is to return it? Classical economic theories suggest that the greater the appeal, the less likely we are to be honest—but a new study turns the idea on its head, finding altruism(利他主义), and a powerful hate for viewing oneself as a “thief” outweigh the financial attraction.
A team of researchers conducted a huge experiment concerning 355 cities in 40 countries. More than 17,000 identical wallets were dropped off at public places, each containing a grocery list, a key, and three business cards in the local language using made-up names and an email address. Some had no money while others contained the equivalent (等值) of $13.45.
According to the research, people on average returned 40% of wallets with no money in them but 51%with money. It also shows extreme differences between countries. But although rates of people’s honesty varied greatly from country to country, one thing remained remarkably constant: wallets with money, as opposed to no money, raised reporting rates.
In the US, the UK and Poland, they repeated the experiment with even more money: $94.15, which increased reporting rates by an average of 11% compared to the smaller amount. They also found that having a key expanded reporting rates by 9.2%.
The findings, which run counter to a fundamental principle of classical economics, suggest honesty, altruism and self-image can sometimes be more influential than economic self-interest.
A purely economic approach to behavior suggests people would keep the wallets with the larger amounts of money due to the increased financial reward, but economics often doesn’t account for a person’s sense of honesty or self-image, according to behavioral scientists. Altruism also influenced the findings, the researchers say. Since the key is valuable to the owner but not the finder, this pointed toward an altruism concern in addition to the cost of negatively updating one’s self image.
1. What does the author intend to do in Paragraph 2?| A．Introduce a new topic for discussion. |
| B．Add some background information. |
| C．Describe a widely conducted experiment. |
| D．Provide the research results for the readers. |
| A．11%. | B．20.2%. |
| C．51%. | D．62%. |
| A．Go against. | B．Account for. |
| C．Agree with. | D．Focus on. |
| A．Classical economic theories have already been out of date. |
| B．People are more likely to return a lost wallet with more cash. |
| C．An experiment conducted worldwide proves people’s altruism. |
| D．Rates of people’s honesty vary greatly from country to country. |
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【推荐1】Researchers set up an experiment in which 5-year-olds were tested with their fellows under different circumstances of transparency (透明) and different audiences. They set up a sticker machine that in some settings was transparent, and other settings in which only the giver of stickers knew how many stickers he could give. They had children give out stickers in both settings. The results were striking: children were consistently generous only when the receiver and audience of the stickers were fully aware of the donation options. Children were notably ungenerous when the receiver of stickers couldn’t see the options.
The researchers said, “Children only showed consistently pro-social behavior in our study in the condition when they could see the receiver and their allocations (分配物) were fully visible; in all other conditions, children were statistically ungenerous, giving the receiver the smaller amount of stickers.”
They made the conclusions that at a very early age, children are learning how to position themselves socially. Well before they apprehend the sociology of their networks and what social reputation really means, they think strategically about giving as a function of how they can gain a reputation with a peer as a generous citizen or pro-social agent when the receiver observes them.
Children change their behavior in response to having an audience. Help children give to others in full view, delivering meals to families, and in private, dropping off treats or surprises for those who need support without signing their names. Also, children should be reminded that thank-you notes are lovely but unnecessary to receive. When we give gifts or lend help to others, try to help children remember why—to provide something for another. It really doesn’t have to be recognized. When a thank-you card doesn’t come, it doesn’t make a gift any less valuable or meaningful for those who were lucky enough to receive.
1. What did the researchers discover?| A．The givers’ behavior greatly inspired the receivers to help in return. |
| B．The children gave out an equal number of stickers in both settings. |
| C．The presence of an audience affected children’s decisions to give. |
| D．Donating helped children to become more generous in the future. |
| A．Observing the givers. | B．Donating more stickers. |
| C．Gaining a reputation. | D．Receiving more allocations. |
| A．Share. | B．Predict. | C．Confirm. | D．Understand. |
| A．To suggest recognizing others’ kindness. | B．To acknowledge the giver’s contribution. |
| C．To confirm the benefits of being grateful. | D．To advise inspiring generosity in children. |
【推荐2】In February, Japan appointed Tetsushi Sakamoto as the country’s first Minister of Loneliness to address the issue of isolation for the growing number of the population who live alone.
Loneliness has been a long-standing issue in Japan. Half a million people in the country live a solitary(独身的) life. They are known as hikikomori – “those who withdraw from all social contact and often don’t leave their houses for years at a time”, according to the BBC.
“In Japanese strict social norms(行为规范), high expectations from parents and a culture of shame make Japanese society a fertile ground for feelings of inadequacy.” Takahiro Kato, who studies and treats hikikomori, told the BBC.
But the pandemic has only worsened the effects of this lifestyle. According to figures released by the National Police Agency, in 2020 Japan saw a rise in suicides for the first time in 11 years. A total of 20,919 people took their own lives, 750 more than the previous year. The majority of them were single women and students.
Before the pandemic(疫情), most people who live alone had a fairly normal routine: a full day of work, dining with friends afterward, then going home. But the pandemic forced them to stay indoors, reducing the few chances they had to socialize.
Sakamoto hopes to deal with the issue of increased feelings of isolation. At a news conference on Feb 12, he said that he hopes to “carry out activities to prevent social loneliness and isolation and to protect ties between people”.
After all, just as UK poet John Donne wrote, “No man is an island, entire of itself; every man is a piece of the continent, a part of the main.”
1. What does the underlined word “inadequacy” in paragraph 3 probably mean?| A．Respecting the elderly. | B．Lacking self-confidence. |
| C．Hiding to avoid trouble. | D．Following social norms. |
| A．The pandemic put people out of work. |
| B．The pandemic made solitary people feel lonelier. |
| C．People suffered from anxiety due to the pandemic. |
| D．Being outside their routine caused inconvenience. |
| A．Man is a social animal. |
| B．Everyone is like everyone else. |
| C．People should be ashamed of being alone. |
| D．People can find ways to deal with loneliness. |
| A．The reason why there are hikikomori in Japan. |
| B．The responsibility of the Minister of Loneliness. |
| C．How the pandemic has affected people's lives in Japan. |
| D．Why Japan appointed a Minister of Loneliness. |
【推荐3】One of the pleasant things about having an apartment is having neighbors. You may develop personal friendships with some of your neighbors. There may also be times when you have a conflict（冲突）with your neighbors. There may be neighbors you just don't get along with at all. So how can you get along well with your neighbors？
Your neighbors have the right to maintain their living space as you do. Your neighbors have their own lifestyle and their own responsibilities. When you first move into an apartment, show respect for your neighbors. If you see them outside, say "hello". Introduce yourself to them and tell them you just moved in. Be pleasant. Early conflict with neighbors can cause you a bad reputation（名声）.You should avoid that. Don't turn up your radio loud. Don't speed up your car on the streets of the neighborhood.
If your neighbors or your landlord（房东）feels that you are causing a problem at any point, be-have responsibly. It is not fun to suddenly be blamed for something, and it is easy to get defensive if this occurs. However, you need to accept that something you are doing has dissatisfied either your neighbors or your landlord or both of them. Listen to their stories carefully. Try to imagine yourself in their situation. Apologize for the problem you have caused.
If you feel your neighbors are causing a disturbance, be dispassionate. For example, suppose that it's two o'clock in the morning and you are awakened by loud noise from neighbors who are having a party, what will you do？This is annoying. You need to recognize that this is the first time that such kind of thing has happened. Recognize that your neighbors are human beings that make mistakes. Realize that there is time to resolve your discomfort with your neighbors. With cool heads, proper communication, patience, and consideration, you can solve this problem with your neighbors.
1. Paragraph 2 mainly suggests that we should be _________| A．careful and calm | B．friendly and considerate |
| C．kind-hearted and patient | D．responsible and easy-going |
| A．Be defensive. | B．Don't take it seriously. |
| C．Ask the landlord for help. | D．Listen and try to be responsible. |
| A．neighbors try to anger us | B．we are blamed for something |
| C．neighbors cause a disturbance | D．w e are woken up by neighbors |
| A．Calm. | B．Concerned. | C．Relaxed. | D．Curious. |
【推荐1】Nonverbal communication is the process of sending and receiving messages without using words, either spoken or written. Similar to the way that italicizing (斜体) emphasizes written language, nonverbal behavior may emphasize parts of a verbal message.
Psychologists Paul Ekman and Wallace Friesen (1969), in discussing the interdependence that exists between nonverbal and verbal messages, identified six important ways that nonverbal communication directly affects our verbal messages. First, we can use nonverbal signals to emphasize our words.
| A．Finally, nonverbal communication itself carries the impact of a message. |
| B．Finally, we can use nonverbal signals to add to the verbal content of our message. |
| C．Nonverbal messages have been recognized for centuries as a critical aspect of communication. |
| D．All good speakers know how to do this with forceful gestures, changes in vocal volume or speech rate, deliberate pauses, and so on. |
| E．Called turn-taking signals, these gestures and vocalizations (发声) make it possible for us to alternate the conversational roles of speaking and listening. |
| F．The term was introduced in 1956 in the book “Nonverbal Communication: Notes on the Visual Perception of Human Relations”. |
【推荐2】Buyer beware: There’s a reason why online ticket sellers hit you with last-second fees. A massive experiment by Berkeley professsor Tadelis with the online ticket marketplace StubHub concluded that “drip pricing”, where additional fees are only disclosed when customers are ready to confirm their purchases, resulted in people spending more. “Websites incorporating ‘hidden fees’ are making more money than they would if they chose to honestly display all fees upfront,” Tadelis said.
The study set out to find out how “drip pricing” affects both the quantity and types of ticket purchases through a large-scale, real-world randomized experiment. For the experiment, StubHub randomly assigned half of all the users to an experimental hidden-fee structure where buyers saw only the ticket list price as they shopped, and extra fees were only displayed on the checkout page, which generally amounted to 15% of the ticket price including shipping. The other half of StubHub users continued to see the all-inclusive prices. This setup allowed Tadelis and his colleagues to compare the choices made by the two groups, such as purchases and clicks towards checkout.
Overall, users who weren’t shown the additional fees upfront spent about 21% more on tickets and were 14% more likely to complete a purchase compared with those who saw all-inclusive prices from the start. Among all those who made purchases, customers in the hidden-fee group bought tickets that were about 5% more expensive than those in the upfront fee group, buying more tickets for seats located closer to the field or the event stage.
The findings raise questions for whether the misinformed consumers have a right to full price disclosure upfront. Professor Tadelis noted that some governments have considered regulating this behavior to increase transparency—Canada, for example, has banned the use of drip pricing for ticket sales. “I can’t think of a good reason to allow this practice in any country as the harm to consumers is clear from our study,” Tadelis said.
1. Online ticket sellers reveal the extra fees only at the last moment to________.| A．offer cheaper tickets | B．increase the selling transparency |
| C．make more profits | D．allow buyers more time to consider |
| A．Participants were divided into halfs at their will. |
| B．All users could see the additional fees in advance. |
| C．Shipping fees amount to 15% of the ticket price. |
| D．Researchers compared the two groups’ choices. |
| A．It made 14% more customers buy tickets. |
| B．It helped to increase ticket profits by 5%. |
| C．It has been regulated by the governments. |
| D．It caused customers to spend more money. |
| A．It is practical and deserves promoting. | B．It is harmful and should be banned. |
| C．It is costly but can be accepted. | D．It is beneficial but needs regulating. |
【推荐3】Chinese researchers have developed a robot designed to help doctors treat the new coronavirus and other highly contagious (传染的)diseases.
The machine has a long robotic arm attached to a base with wheels. It can perform some of the same medical examination tasks as doctors. For example, the device can listen to sounds made by patients’ hearts and lungs.
Cameras record the robot’s activities, which are controlled at a distance so doctors can avoid coming in close contact with infected patients. Doctors and other medical workers can run the machine from a nearby room, or from much farther away.
The robot’s main designer is Zheng Gangtie, an engineer and professor at China’s Tsinghua University in Beijing. He told Reuters news agency that he got the idea for the machine when the number of cases of the COVID-19 virus was rising quickly in the city of Wuhan.
One of Zheng’s friends, head of Bering’s Tsinghua Changgung Hospital, told him that one of the biggest problems in dealing with COVID-19 was that healthcare workers treating patients were getting themselves infected. Zheng said he wanted to do something to help this situation.
So the engineer gathered a team and went to work on the robot. Zheng said the team was able to change two robotic arms. The new robot is almost completely automated, Zheng said. It can even disinfect (将……消毒)itself after performing actions involving patient contact.
“Doctors are all very brave,” Zheng told Reuters. “But this virus is just too contagious. We can use robots to perform the most dangerous tasks.”
However, Zheng said he had heard from some doctors that it would be better not to build such robots. This is because many patients still desire a personal presence to help calm them during treatment.
The team now has two robots and both have been tested by doctors at hospitals in Beijing. One machine was once taken to Wuhan’s Union Hospital, where doctors there were trained to use it.
Zheng would like to build more of the robots, but money from the university has run out, each robot costs about$72,000 to make. He does not plan to commercialize the design, but hopes that a company can begin that process.
1. What are Paragraph 4 and 5 mainly about?| A．When the robot was designed. | B．How the robot is controlled. |
| C．Who the robot is intended for. | D．Why the robot was invented. |
| A．It can calm the patients down during treatment. |
| B．It can listen to sounds made by patients’ lungs. |
| C．It can disinfect itself. |
| D．It can perform actions involving patient contact. |
| A．Patients refusing to use the new robot. |
| B．Healthcare workers getting themselves infected. |
| C．Being short of money to produce more of the robots. |
| D．Having no teammates to commercialize the design. |
| A．Doctors are Fighting against Coronavirus |
| B．Coronavirus is Under Control in China |
| C．Chinese Robot is Invented to Replace Doctors to Cure Diseases |
| D．Chinese Robot is Designed to Help Doctors Fight Coronavirus |
【推荐1】On a trip to the forests of southern India, amateur photographer Kaushik Vijayan was shocked to see some massive rodents（啮齿动物），who are maroon（紫褐色），leaping from treetop to treetop.
Vijayan uploaded the images of the four-pound rodents to Instagram, and the Internet went crazy immediately. Some had a difficult time believing that the squirrels, photographed in the Pathanamthitta District of Kerala, actually exist, thanks to the animals' bright spots of black and maroon.
But the Indian giant（巨大的）squirrel, also known as the Malabar giant squirrel, is the real deal. Believe it or not, it is not alone. There are three other giants in the squirrel family, Sciuridae-each of which weighs in at two to three times the size of the gray squirrels native to the eastern United States.
＂The four species that make up this group are fascinating in their large size, brilliant coloration, and tendency for feeding on some of the massive tropical fruits on the trees, "says Koprowski.
Even among its relatives, the Indian giant squirrel stands out with its bright colors, which makes one wonder why its evolution would select fur. That would call so much attention to itself. After all, these forests are also home to predators such as lion-tailed macaques, leopards, and crested serpent eagles-all of which have been known to hunt rodents.
No one knows for sure, says Koprowski, but the squirrel's purple patterns may serve as a way to hide the animal itself. This is because the broadleaf forests these squirrels inhabit create a pattern of sun spots and shaded areas-not unlike the rodents' markings.
In other words, what looks flashy and fun to us in an Instagram post may make the squirrels disappear when hungry mouths come to hunt. Now that's a common trick.
1. How did people feel after seeing the Malabar giant squirrel's images?| A．Nervous. | B．Incredible. | C．Embarrassed. | D．Sorrowful. |
| A．Its size. | B．Its habitat. | C．Its color. | D．Its lifestyle. |
| A．To show itself off. |
| B．To protect itself. |
| C．To drive other animals away. |
| D．To compete with its companions. |
| A．Human beings. |
| B．Rodents' hunting. |
| C．The Instagram post. |
| D．The broadleaf forests. |
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1. By searching the internal knowledge base, you can _______.
| A．access the Help Center |
| B．enjoy user-friendly manuals |
| C．create a secure resource center |
| D．learn the company’s practices and policies |
| A．users of ProProfs can read the manuals on their mobile phones |
| B．the service that ProProfs offers to its users is accessible around the clock |
| C．with ProProfs, users can readjust the size of their documentation to their screens |
| D．different users can be grouped together on a central platform to share knowledge |
| A．By authorizing different users. | B．By creating a central platform. |
| C．By offering single sign-on settings. | D．By building private knowledge bases. |
【推荐3】Noise pollution in cities is causing our health to suffer: one in five Europeans is regularly exposed to sound levels at night that could significantly damage their health, leading to diseases, sleep difficulties and stress. Researchers in Belgium have developed an app called NoiseTube that allows everyone to transform their smartphone into a sound level meter (仪表).
NoiseTube works by recording sound levels and GPS locations. Once launched the app shows decibel (分贝) levels of green or red depending on the level of noise. That information is then sent to the NoiseTube server via the Internet where a “noise map” is produced and then made available to the user.
The project started in 2008 as a new form of data gathering, one that was close to people and of a social concern. “Sound was an obvious choice because everyone has a microphone on their mobile phone, and noise pollution, along with air pollution is an environmental concern. Often the two go hand in hand,” D’Hondt of the NoiseTube project said.
Since its launch, the app has been popular with community groups who want to monitor their own noise levels. They don’t think that city produced noise maps give an enough explanation of the level of noise they are experiencing. City produced noise maps are based on statistical models involving very few actual measurements. NoiseTube on the other hand gives a detailed account of the level of noise experienced at a specific time and location. “Ten people walking the same area from 9am to 10am every day for one week can make a valid (有效的) and detailed map for an area of a couple of blocks,” D’Hondt said.
So far these sorts of noise maps have been produced for a number of European cities. The app has been downloaded by 10, 000 people with 2, 700 people registered on the NoiseTube website.
1. What is the main function of NoiseTube?| A．Measure noise levels. |
| B．Reduce noise pollution. |
| C．Make people aware of noise pollution. |
| D．Help treat diseases caused by noise pollution. |
| A．NoiseTube is mainly accepted and used by young people. |
| B．NoiseTube helps record the location of the noise in detail. |
| C．NoiseTube can show the process of drawing noise maps. |
| D．NoiseTube is a built-in app in a new kind of smartphone. |
| A．How NoiseTube works. |
| B．How NoiseTube gathers data. |
| C．How NoiseTube was invented. |
| D．How noise levels are classified. |
| A．They aren’t drawn very clearly. |
| B．They are difficult to understand. |
| C．They can’t be used without a smartphone. |
| D．They can’t show the read noise level of a place. |
【推荐1】Who is the best foreign cross-talk（相声）comedian? People have always wondered how the Canadian with his standard Mandarin pronunciation, practised skills on Chinese expressions and special humour with a Beijing accent, Dashan has become a household name across China.
The Canadian can be so skillful in the Chinese language even though it is considered by many as one of the most difficult languages in the world. But to Dashan, the great challenge was a piece of cake due to his deep interest, proper method and the excellent environment he created for himself.
"Interest is the best teacher." That is a universal principle. Even if the 20-year-old Mark Rowswell—Dashan's real name—hadn't fully realized what attracted him to the Chinese department at the University of Toronto in Canada, he was already deeply interested in Chinese culture when he decided to have further studies in Beijing.
Entering the Chinese department of Peking University in 1988, Dashan felt like a duck to water. Study is always a hard job, no matter how much interest you have. Therefore, effective ways are necessary to improvement. "Learn for life and learn in life" is Dashan's belief.
As a freshman at the University of Toronto, the student did study textbooks, with especially aimed on foreign Chinese learners. They did help him build a solid foundation.
However, that's far from enough to grasp the Chinese language. Starting in his junior year, Dashan began to read original Chinese novels, Chinese newspapers and even the Selected Works of Deng Xiaoping. "Only the material for Chinese native readers could give me a proper sense of the language," he said.
The language that is the daily means of communication is the principle that Dashan always keeps in his mind. What you have really learned depends on what you can use, not necessarily your mastery of textbooks.
To learn in daily life requires a favourable language environment, which is also necessary for improvement. Dashan admits it is hard for Chinese English learners to be brought into a good English speaking environment, but insists, "to listen and speak as much as possible does help."
To help Chinese English learners develop a favourable environment, Dashan took part in a VCD programme— "Travel with Dashan" — to teach daily and up-to-date English in real-life situations.
1. What can we learn from this text?| A．Dashan thinks Mandarin is the most difficult language in the world. |
| B．Dashan's reading Chinese in the original helps him build a solid foundation. |
| C．Dashan's VCD programme "Travel with Dashan" helps Chinese learn English. |
| D．Dashan began to show interest in Chinese culture when studying in Peking University. |
| A．learn things in our daily life |
| B．learn more to lead a better life |
| C．practice the language frequently |
| D．learn to live and learn in our daily lives |
| A．to kill the time | B．to get a proper sense of Chinese |
| C．to admire the former leader | D．to learn more of the spirits of Chinese |
| A．why Dashan came to China to learn Chinese |
| B．what is the best way to learn a foreign language |
| C．how Dashan has become a household name across China |
| D．how Dashan teaches English through VCD in real life situations |
【推荐2】The common cold is the world’s most widespread illness, which is probably why there are more myths about it than any of the other illnesses.
The most widespread mistake of all is that colds are caused by cold. They are not. They are caused by viruses passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated Arctic regions explorers have reported being free from colds until coming into contact again with infected (感染的) people from the outside world by way of packages and mail dropped from airplanes.
At the Common Cold Research Unit in England, volunteers took part in Experiments. After taking hot baths, they put on bathing suits, allowed themselves to be doused (浸入) with cold water, and then stood about dripping wet in drafty (通风的) rooms. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.
If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter? One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on.
No one has yet found a cure for the cold. There are drugs and pain suppressors (止痛片) such as aspirin, but all they do is to relieve the symptoms.
1. What does the fact that the Eskimos don’t suffer colds show?| A．Colds are really full of myths. |
| B．Viruses are the factors causing colds. |
| C．Colds are more severe than other illnesses. |
| D．The idea that cold leads to colds doesn’t stand up. |
| A．Being doused with cold water did harm to one’s body. |
| B．Taking hot baths made the volunteers easy to be tired. |
| C．It was viruses not wet and cold that made people have colds. |
| D．People who would like to exercise in the rain got colds more easily. |
| A．Staying together indoors makes it easier for viruses to pass on. |
| B．People are usually weak because of the extreme cold in winter. |
| C．Viruses can go into people’s warm bodies more easily in winter. |
| D．There is great difference between indoor and outdoor temperature. |
| A．The myths about colds. | B．The experiments on colds. |
| C．The continued spread of common colds. | D．The reason and the way people catch colds. |
Joanna Shields，vice president of Facebook Europe，made the announcement this morning at a media conference in London．
She said: "We can announce today that we have reached 30 million in the UK，which we are really excited about．"
Globally，Facebook has more than 500 million registered users，a milestone it hit last summer．Last July，it also revealed that it had 26 million registered UK users．In the last eight months，it has attracted four million extra UK users，bringing the UK total to 30 million，while in January 2009，Facebook had only 150 million registered users．
Last year，Zuckerberg，Facebook's founder，said it was "almost a guarantee" that the site would hit one billion users．He explained: "If we succeed in innovating，there is a good chance of bringing this to a billion people．．．it will be interesting to see how it comes true．"
One third of women aged 18 to 34 check Facebook when they first wake up，before even going to the toilet，according to research．Twenty-one per cent of women aged between 18 to 34 check Facebook in the middle of the night，while 42 per cent of the same group think it is fine to post drunken photos of themselves onto the social network，a study by Oxygen Media found．
Shields was speaking this morning at the Financial Times Digital Media and Broadcasting Conference about the power Facebook's referrals can bring to media sites，such as newspapers and TV services．
She explained that the average Facebook user has 130 friends who they share links to media sites with on a regular basis．"Media companies which take advantage of that are really seeing the benefits"，Shields said．
Shields refused to say whether Facebook would develop its own mobile phone operating system and also said it was "silly" that Google had recently disabled the feature（特点）which allowed Google users to sync their contacts with Facebook friends．
1. What is Joanna Shields content with?
| A．the announcement |
| B．media conference |
| C．fast growing registered users |
| D．the benefits of Facebook |
| A．negative | B．optimistic |
| C．cold | D．pessimistic |
| A．teenagers | B．middle-aged people |
| C．old people | D．young people |
| A．Facebook would develop its own mobile phone operating system |
| B．Google didn't allow its users to sync their contacts with Facebook friends |
| C．Shields refused to admit the power Facebook's referrals could bring |
| D．Google was always silly |
