宫内节育器避孕原理是A.抑制卵巢排卵 B.改变宫颈黏液性状 C.干扰下丘脑-垂体-卵巢轴 D.杀精毒胚，干扰受精卵着床 E.阻止精子进人宫腔及输卵管

作者: tihaiku 人气: - 评论: 0

问题宫内节育器避孕原理是

选项 A.抑制卵巢排卵 B.改变宫颈黏液性状 C.干扰下丘脑-垂体-卵巢轴 D.杀精毒胚，干扰受精卵着床 E.阻止精子进人宫腔及输卵管

答案 D

解析

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