2. 外语
  3. During the Ice Ages, man developed the use of tools, and thus a way of protecting himself against ______.

During the Ice Ages, man developed the use of tools, and thus a way of protecting himself against ______.

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问题 During the Ice Ages, man developed the use of tools, and thus a way of protecting himself against ______.
选项 A、shortcomings
B、faults
C、mistakes
D、hazards
答案D
解析 词义辨析。本题前三项都作“缺点”，“错误”讲，不合题意，故只能选hazards危险。
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大学英语六级

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