2. 外语
  3. Experiments in which animals live in artificial surroundings show that ______. Animals save its resources for certain time of d

Experiments in which animals live in artificial surroundings show that ______. Animals save its resources for certain time of d

admin2009-04-23  45
问题 Experiments in which animals live in artificial surroundings show that ______.
Animals save its resources for certain time of day because ______.
选项
答案they can most easily catch food at that time
解析 由题干save its resources可定位至第二段第二句…they allow…best suited to compete for food，best suited to compete for food(最适合竞争食物)即most easily catch food。
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大学英语四级

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