单选题_____AaffectedBdependedCeffectedDeffective

单选题
_____
A

affected

B

depended

C

effected

D

effective


参考解析

解析:
句意:所有的人类,自原始人到现代人,都受这三件事的影响。此处为被动语态,首先可排除D;depend不符合文意;affect和effect都可以表示影响,affect着重“影响”的动作,有时含有“对……产生不利影响”的意思;effect强调“造成”一种特殊的效果。因此A更符合题意。

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