题目内容
短效口服避孕药避孕原理正确的是
2021-10-13
A.垂体分泌FSH和LH增加
B.下丘脑释放LHRH增加
C.宫颈黏液黏稠度増加
D.子宫内膜发生分泌期变化推迟
E.阻止精子与卵子相遇
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