Human population growth is a menace to nonhuman life forms on our planet.

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问题 Human population growth is a menace to nonhuman life forms on our planet.

选项 A、hindrance
B、misfortune
C、catastrophe
D、threat

答案D

解析 menace威胁；threat威胁，恐吓；hindrance障碍，妨碍；misfortune不幸，灾祸；catastrophe灾难。

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考博英语

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