高中教育高考英语2007年全国统一考试英语福建卷

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• 51When there are no stimuli, a dog will  ____.

  A.wag to the left

  B.wag to the right

  C.not wag at all

  D.wag to the left and then to the right

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• 52The underlined word “they” refers to ____ .

  A.the dogs

  B.the trainers

  C.the systems

  D.the rescarchers

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• 53The purpose of doing the experiment is ____ .

  A.to train dogs for their owners

  B.to help people judge the mood of dogs

  C.to help dogs find company

  D.to help people choose their pet dogs

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