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薈聚奇文、博采眾長、見賢思齊
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According to the text, all of the following behaviors have been exhibited by different populations EXCEPT

網(wǎng)站:公文素材庫 | 時間:2020-02-22 12:18:38 | 移動端:According to the text, all of the following behaviors have been ...
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.

參考答案:D

  「解析」這是一道審題定位與中心主旨題。根據(jù)本題題干中的“different populations”可將本題的答案信息來源確定在首段的第一句,因為該句中的“all species”實際上指的就是題干中的“different populations”。從第一段的首句入手并且仔細(xì)閱讀首段的第二句,就可以找出本題的正確選項D,因為該選項所傳達的信息與原文第一段第一、二句所傳達的信息不一致?忌诮忸}時一定要學(xué)會迅速審題定位的能力。

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