避孕套避孕的主要作用机理是A.抑制排卵,不利于精子穿透B.阻止精子进入宫腔C.杀灭精子D.不利孕卵着床E.杀灭卵子

作者: tihaiku 人气: - 评论: 0
问题 避孕套避孕的主要作用机理是
选项

A.抑制排卵,不利于精子穿透
B.阻止精子进入宫腔
C.杀灭精子
D.不利孕卵着床
E.杀灭卵子

答案 B
解析

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