________to lead is known to damage the brains of young children.

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问题 ________to lead is known to damage the brains of young children.

选项 A、Exposure
B、Explosion
C、Experience
D、Emancipation

答案A

解析 本题考查名词辨析。根据lead(铅)和damage the brains of young children(对幼儿的大脑有害)可知,损害幼儿大脑是因为接触了铅,空格处所填词应表示“接触”,且能与介词to搭配。exposure(暴露)与to搭配,表示“暴露在,接触”,符合语义,故答案为A项。explosion意为“爆炸,爆发”;experience意为“经验,经历”;emancipation意为“解放,释放”。
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