公共课考研英语英语1993年全国硕士研究生入学统一考试英语试题

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• 41The passage is mainly about ________.

  A.an approach to patents

  B.the application for patents

  C.the use of patents

  D.the access to patents

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• 42Which of the following is TRUE according to the passage、

  A.When a patent becomes out of effect, it can be re-patented or extended if necessary.

  B.It is necessary for an inventor to apply for a patent before he makes his invention publi

  C.C.A patent holder must publicize the details of his invention when its legal period is over.

  D.One can get all the details of a patented invention from a library attached to the patent offic

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• 43George Valensi’s patent lasted until 1971 because ________.

  A.nobody would offer any reward for his patent prior to that time

  B.his patent could not be put to use for an unusually long time

  C.there were not enough TV stations to provide colour programmes

  D.the colour TV receiver was not available until that time

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• 44The word “plagiarize” (Line 8, Par

  A.5) most probably means “________.”A.steal and use

  B.give reward to

  C.make public

  D.take and change

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• 45From the passage we learn that ________.

  A.an invention will not benefit the inventor unless it is reduced to commercial practice

  B.products are actually inventions which were made a long time ago

  C.it is much cheaper to buy an old patent than a new one

  D.patent experts often recommend patents to others by conducting a search through dead patents

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