Article: You may not be aware, but digital currency is a big part of the Internet world. QQ Coins can buy you accessories for your QQ images. More importantly, a new digital currency, Bitcoin, is bringing the world's commerce online. If you're traveling, you can spend Bitcoins at restaurants and hotels listed at BitcoinTravel.com. In China, Bitcoins can be used to buy goods at about 134 online shops on Taobao. And at a cafe named 2nd Place in Beijing, you can even buy fresh coffee with Bitcoins. So what makes Bitcoin so attractive to investors? First of all, the Bitcoin system is not controlled by anyone. One central authority cannot make policies to change the value of Bitcoins. The fixed amount of Bitcoins also means they cannot lose value through inflation , as all forms of paper money have done over time. In addition, accounts in the Bitcoin system are anonymous and transparent. Users can set up an account easily and track every Bitcoin. All of these features seem to make Bitcoins immune from loss, but that is not entirely true. "The value of Bitcoins can vary wildly as no central government makes the price of them steady. If the value drops suddenly, investors cannot get any compensation ," Zhao Qingming, a senior researcher at China Construction Bank, told China Economic Weekly. And Bitcoins, unlike company shares, are not backed by any tangible funds, which also adds to their risk. While China will not recognize the digital currency anytime soon, Xinhua said, lawmakers and officials at a hearing on Nov. 18 in the US made positive comments about Bitcoin. Ben Bernanke, outgoing chairman of the Federal Reserve, told the Washington Post that "these types of creations, such as Bitcoin... may hold long-term promise, particularly if its system promotes a faster, more secure and more efficient payment system." Question: We can use Bitcoin to buy the following things except _ . Yes or no, is the answer "books in physical shops"?
No

Article: A US student has just spent 30 days on an "insect diet " - eating insects three times a day. Camren Brantley-Rios says traditional meats such as pork and beef are unable to continue and he wanted to try out what many consider the diet of the future. Many people would not like the idea of eating insects distasteful, even if it were not disgusting. Not so long ago Brantley-Rios was among them. But for the last month he has been eating insects for breakfast, lunch and dinner. "I'm mainly sticking to three kinds," he says. Occasionally he has included different insects. Preparing these he "actually cried", though he insists they were surprisingly good. Insects consume fewer resources than animals, like pigs and cows, to produce the same amount of protein , Brantley-Rios says - and more than two billion people worldwide include insects in their regular diet, according to the UN Food and Agriculture Organization. "There's not really a need to eat insects in America because we have it so nice," Brantley-Rios says. "We have finer meats and we're lucky to have that luxury , so there's not much of a pressure to eat insects right now. But what a lot of people are trying to do is make it a little bit more marketable." He has ordered insects from farms that usually supply zoos, which need them "to feed certain animals". He has always made sure the insects have been fed on an organic diet, he says, and only bought species he knows are safe to eat. He knows that one person eating insects won't make much difference. To have a real environmental effect, millions would have to follow his example. Question: How does Brantley-Rios guarantee the safety of his insect diet? Yes or no, is the answer "He orders insects for certain zoo animals."?
Yes

Article: The West is full of fast food and large amounts of food which contribute to many women's being fat. While many are fat, thin women are admired and seen as healthier. This has led to a culture of gym-going, strange dieting methods and, frequently, eating disorders. In the East, women tend to be smaller and many women take pills to keep their slim figures as they get older. However, you're mistaken if you think thinness is the beauty standard all over the world. The BBC reports that in Mauritania, Africa, the opposite is true. In Mauritania, mothers force their daughters to eat a lot of food so that they get as fat as possible. The fatter they are, the more likely they are to marry well. Fat is also considered healthy, because in a country where HIV/AIDS is a very real problem, thin people are often sick and dying. However, "healthy" fat women are suffering from some problems of their own and many are dying in their 40s of weight-related diseases. The Mauritanian government is trying to warn its people of the dangers of being overweight but it's not easy to change cultural views. Many women worry that if they lose weight, their husbands will leave them for fatter, more attractive women. It seems that while education about the dangers of being too thin and too fat is very important, what the world really needs is to become less pre-occupied with the size, shape and weight of women's bodies. The promotion of healthy practices is easy but changing cultural beauty standards takes more time, imagination and effort. Question: Why are girls forced to eat a lot of food in Mauritania? Yes or no, is the answer "They believe if they grow fat, they may possibly marry good husbands."?
No