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大学英语考试
大学英语考试
全国英语等级考试(PETS)
英语证书考试
英语翻译资格考试
全国职称英语等级考试
青少年及成人英语考试
小语种考试
汉语考试
专业英语四级TEM4
大学英语三级A
大学英语三级B
大学英语四级CET4
大学英语六级CET6
专业英语四级TEM4
专业英语八级TEM8
全国大学生英语竞赛(NECCS)
硕士研究生英语学位考试
单选题The problem ______ success is that by the time you are rich enough to sleep late, you are so old that you always wake up early.
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单选题{{B}}SECTION C NEWS BROADCAST{{/B}} {{I}} Questions 21~22 are based on the following news from the BBC or the VOA. At the end of the news item, you will be given I0 seconds to answer the two questions. Now listen to the news.{{/I}}
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单选题______ my interest in formal semantics, this university is the best place to study.
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单选题Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation.
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单选题Which CANNOT be learned about the crash?
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单选题In what way do Columbian students differ from Japanese students?
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单选题We should make mental preparation for failure, because there is only a(n) ______ number of possibilities of success. A. infinite B. finite C. innumerable D. numerous
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单选题{{B}}TEXT C{{/B}} Blind people usually possess one advantage over other people who can see: their sense of hearing is far more acute. Sounds which most others would miss can carry a great deal of information to a sightless person. For instance, teams of blind children can enjoy fast-moving games of soccer with a bell inside the ball and a new hand-held ultrasonic device to guide them. And that sound-location system could help to build up an even more complete sound picture of a blind person's surroundings. Bats, whose sight is poor, use a sound-location system to help them avoid obstacles in the dark. They send out pulses of sound waves, pitched at 50,000 cycles per second, far above the limits of the human ear, which can hear sounds up to frequencies of about 20,000 cycles per second. As the echoes bounce back off obstacles such as trees and walls, the bats are able to take appropriate action. The first steps to help blind people to see with sound are based on exactly the same principle. The sound is emitted by an ultrasonic torch, shaped like a double-barreled version of a normal electric torch. It works in a similar Way to a sonar u nit on a warship or submarine. The unit’s transmitter sends out pulses of ultrasonic waves at the same frequency as the bat, and the receiver picks up the returning echoes. Because these are still above the frequency at which the human ear can pick them up, the echoes are filtered through circuits which turn them into clearly audible ' bleeps' before passing them into headphones. This means that a person holding the torch can point it ahead of him and ‘scan’the area for obstacles over a range of about 25 ft. ff there are no return echoes coming through the headphones, then there is nothing in the way. If echoes do come back, then the closer the obstruction, the faster the succession of bleeps and the deeper the pitch of each bleep. With practice the torch could help a blind person to lead a more normal life -- without needing a constant companion to guide him. Experienced operators of the torch system claim they can distinguish grass from bushes, trees, pests and curbstones. But before blind people can be helped to feel really independent, the system needs to be more streamlined. At pres ent, the experimental ultrasonic torch requires a shoulder bag to carry the batteries, cables for the power supplies and earphones, in addition to the torch itself. But miniaturization of electronic equipment is making such rapid progress that it should not be long before the whole set-up can be reproduced in a form small enough to fit into a pair of spectacles. The transmitter and power supplies, with all the circuitry, would be packed into the bridge-piece above the nose. The sending and receiving sensors would be in the ' lenses'. And the filtered bleeps would be passed on to the wearer through the earpieces, as with present-day hearing-aid spectacles. This would mean that scanning one’s surroundings would become instinctive. The wearer would face in the direction he wanted to check, and lift or lower his head just as a sighted person would.
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单选题
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单选题
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单选题According to the news, the New York Stock Exchange ______.
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单选题The energy gained from the sun can then be used during the hight to enable the necessary chemi-cal reactions to _______ in his body.
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单选题
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单选题He is too young ______ the old society. A.to see B.to have seen C.to seeing D.to having seen
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单选题______bright was the moon that the flowers were bright as by day.
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单选题 {{I}} Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation.{{/I}}
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单选题This text mainly deals with ______.
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单选题His urgent letter finally brought me ______ to give money to the school.
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单选题{{B}}SECTION C NEWS BROADCAST{{/B}} {{I}} Questions 21 to 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now listen to the news.{{/I}}
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单选题The storms have resulted in the following EXCEPT______.
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