According to the passage before a VCR is cold on the market, its original model should be tried out ________.

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• 1It seems that manufacturers will remain reluctant to make improvements unless ________.

  A.they can do so as a very low cost

  B.they find their machines hard to operate

  C.they have difficulty selling their products

  D.they receive a lot of complaints about their machines

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• 2According to the author, manufacturers ________.

  A.should add more useful features to their machines

  B.often fail to make their products easy to use

  C.should make their appliances as attractive as possible

  D.often fail provide proper training in the use of their products

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• 3The author had trouble operating his VCR because ________.

  A.he had neglected the importance of using the timer

  B.the machine had far more technical features than necessary

  C.he had set about using it without proper training

  D.its operation was far more difficult than the designer intended it to be

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• 4According to the passage, which of the following statements is TRUE、

  A.Future man will be made of silicon instead of flesh and blood.

  B.Some day it will be difficult to tell a computer from a man.

  C.The reasoning power of computers has already surpassed that of man.

  D.Future intelligent life may not necessarily be made of organic matter.

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• 5Though he think highly of the development of computer science, the author doesn’t mean that ________.

  A.computers are likely to become a new form of intelligent life

  B.human beings have lost control of computers

  C.the intelligence of computers will eventually surpass will that of human beings

  D.the evolution of intelligence will probably depend on that of electronic brains

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• 6One of the reasons why VCRs are so difficult to use is that ________.

  A.the designers are often insensitive to the operational complexities of their machines

  B.the range of features provided is unlimited

  C.there is no ideal way of controlling quality

  D.their designers often ignore the complaints of their uses

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• 7The police accused him of setting fire to the building but the denied ________ in the area on the night of the fire.

  A.to be

  B.to have been

  C.having been

  D.be

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• 8The schoolmaster ________ the girl’s bravery in his opening speech.

  A.applauded

  B.enhanced

  C.elevated

  D.clapped

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• 9The place did not appear to be popular, for it was completely deserted, and in any case ________ to traffic.

  A.inadequate

  B.inaccessible

  C.incompatible

  D.insignificant

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• 10One of the requirements for a fire is that the material ________ to its burning temperature.

  A.is heated

  B.will be heated

  C.be heated

  D.would be heated

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