The cumulative ______ of human activities on the global environment is becoming increasingly harmful.

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问题 The cumulative ______ of human activities on the global environment is becoming increasingly harmful.

选项 A、effect
B、influence
C、impact
D、outcome

答案A

解析 近形近义题。所填词能被cumulative和harmful修饰,effect“结果,效果;影响”强调直接的因果关系,指对一系列事件适用的原则继续在别的场合产生效果或起作用,符合句意,所以[A]为答案。[D]influence“影响”和[C]impact“影响,效果”不能被cumulative修饰;[D]outcome“结局,成果”指最终的结局或结果,由题干中的increasingly可知并非最终结果,所以[D]不合适。
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