Article: It is important to know another language and how to communicate without words when you are in another country. Before saying anything, people communicate with each other by using gestures . However, many gestures have different meanings, or no meaning at all, in different parts of the world. In the United States, nodding your head up and down means "yes", while in some pats of Greece and Turkey, it means "no". In the southeast of Asia, it is a polite way of saying "I heard you". Today in the USA, when someone puts his thumb up, it means "Everything is all right." However, in Greece it is bad. Also putting your clasped hands up above your head means "I am the winner." It is the sign which players often make. In Russia it is the sign of friendship. In the USA, holding your hand up with the thumb and index finger , and the other three straight means "Everything is OK." In France, it means "You are worth nothing." It is also important to make eye communication. If you look down when talking to an American, he or she may feel that you are shy, or you are trying to hide something. Besides these, you should also know there are some topics that can not be talked about, such as age, weight and marriage. You can talk about the weather, work, sports, food, where one lives and news of the day. Question: Which of the following is true? Yes or no, is the answer "Many gestures either have different meanings or no meanings at all."?
Yes
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Article: When we talk about superstitious beliefs , the beliefs associated with Friday the 13th , no doubt , deserve a special mention . In fact , such is the fear associated with this date that people just can't seem to stick to their daily routine on this day . The data from Stress Management Center and Phobia Institute suggests that somewhere around 17 to 21 million Americans are affected by the fear associated with this day , i.e. the combination of Friday and 13 . Even worse , the financial losses caused on this day amounts to as much as US$800 million every year . As we flipped through the pages of history , we realized that Friday the 13th bears the brunt of bad luck associated with number 13 , the unluckiest number , and Friday , the unluckiest day of the week . Number 13 has always been considered unlucky , mainly as a result of it being associated with various occurrences in mythology . While some associate it with the instance of Norse mythology , in which the god of joy and gladness - Balter , was killed in a dishonest manner by Loki - the god of discord and mischief , who was the 13th guest , others associate it with the Last Supper , in which the 13th guest was Judas , who betrayed Jesus to his enemies for 30 pieces of silver . Similarly , Friday has also been a sign of bad luck to many people , with incidents like Jesus being crucified on this unfaithful day , contributing to this belief . It is also widely believed that Cain killed Able on this very day of the week . The fear of Friday the 13th is known as friggatriskaidekaphobia and paraskevidekatriaphobia , the former combining the words frigga , meaning Friday , and triskaidekaphobia , meaning the phobia of number 13 . Over the period , the belief that Friday the 13th is an unlucky day has just become one of the most widely accepted superstitions , which consequently causes much blind panic and unreasonable fear in the world . Question: What does Friday the 13th refer to according to passage ? Yes or no, is the answer "The 13th day of a month falling on a Friday ."?
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Article: The food on the moon has come a long way from the freeze - dried bread to half - dried food. They have changed a lot in the past few years. And now US scientists want to grow vegetables in mini - greenhouses on the moon. Scientists say they are looking forward to a time when people on the moon or even Mars will be able to eat green and fresh vegetables. Paragon Space Development Corporation has shown people what it called the first step toward growing flowers - and finally food - on the moon. Paragon, which is a partner of NASA in experiments at the International Space Station, calls it a "Lunar Oasis " This is a closed greenhouse placed in a metal box. It is designed to safely land a laboratory plant on the moon surface, and protect it while it grows. The small greenhouse is to be sent up into space by Odyssey Moon Ltd, which takes part in the Google Lunar X Prize. This competition offers $ 20 million to any company which can send up, land and operate a lunar rover on the moon surface. Leaders of Paragon say future testing of the "Lunar Oasis" will be driven by Odyssey's flight schedule, which will not happen until 2012 at the earliest. When it is sent up, the greenhouse will have the seeds of cabbage inside it. Because they go from seed to flower in just 14 days, they can complete their life cycle in a lunar night. "Growing plants on the Moon or Mars seems so far away, but it is important that we do this research now," Paragon president Jane Poynter said. "It takes a long time to do a lot of research." Question: According to the passage, Paragon Space Development Corporation _ . Yes or no, is the answer "may test "Lunar Oasis" in the future"?
No
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Article: Researchers are placing robotic dogs in the homes of lonely old people to determine whether they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of robotic dogs on old people's depression, physical activity, and life satisfaction. "No one will argue that an older person is better off being more active, challenged, or stimulated ," Edwards points out. "The problem is how we promote that, especially for those without friends or help. A robotic dog could be a solution." In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old people will keep a diary to note their feelings and activities before and after AIBO. Then, the researchers will review the data to determine if it has inspired any changes in the life of its owner. "I talk to him all the time, and he responds to my voice," says a seventy-year-old lady. "When I'm watching TV, he'll stay in my arms until he wants down. He has a mind of his own." The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns. "At the beginning, it was believed that no one would relate to the robotic dog because it was metal and not furry," Beck says. "But it's amazing how quickly we have given up that belief." "Hopefully, down the road, these robotic pets could become a more valuable health helper. They will record their masters' blood pressure, oxygen levels, or heart rhythms. AIBOs may even one day have games that can help stimulate older people's minds." Question: The author seems to suggest that the future robotic dogs may _ . Yes or no, is the answer "keep old people active"?
No
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