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According to the text, all of the following behaviors have been exhibited by different populations EXCEPT

时间:2020-02-22 12:18:38 网站:公文素材库
According to the text, all of the following behaviors have been exhibited by different populations EXCEPT

  [A] roughly constant population levels from year to year.

  [B] regular cycles of increases and decreases in numbers.

  [C] erratic increases in numbers correlated with the weather.

  [D] unchecked increases in numbers over many generations.

参考答案:D

  「解析」这是一道审题定位与中心主旨题。根据本题题干中的“different populations”可将本题的答案信息来源确定在首段的第一句,因为该句中的“all species”实际上指的就是题干中的“different populations”。从第一段的首句入手并且仔细阅读首段的第二句,就可以找出本题的正确选项D,因为该选项所传达的信息与原文第一段第一、二句所传达的信息不一致。考生在解题时一定要学会迅速审题定位的能力。

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According to the text, all of the following behaviors have been exhibited by different populations EXCEPT
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