2. 外语
  3. Experiments in which animals live in artificial surroundings show that ______. In the author’s opinion, what generates the dail

Experiments in which animals live in artificial surroundings show that ______. In the author’s opinion, what generates the dail

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问题 Experiments in which animals live in artificial surroundings show that ______.
In the author’s opinion, what generates the daily rhythms?
选项
答案The animals themselves.
解析 由题干generates可定位至首段第七句These rhythms must be generated by the animals’own inner "clock"，由此可知答案。
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大学英语四级

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