大学英语大学英语大学英语六级(CET6)2006年6月大学英语六级(CET-6)考试试卷

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• 51If we continue to ignore the issue of global warming, we will almost certainly suffer the _______ effects of climatic changes worldwide.

  A.dubious

  B.drastic

  C.trivial

  D.toxic

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• 52According to the theory of evolution, all living species are the modified _______ of earlier species.

  A.descendants

  B.dependants

  C.defendants

  D.developments

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• 53The panda is an endangered species, which means that it is vary likely to become _______ without adequate protection.

  A.intact

  B.insane

  C.extinct

  D.exempt

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