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怀孕多少天才长胎芽
更新时间: 2020-11-04 00:00:00  

因为胚胎的发育,30--40天形成的是胎囊,40--50天形成的是胎芽,50--60天形成胎心,所以一般的做B超应该是在60天左右的时候做,这时就能够看到胎囊、胎芽、胎心是否正常。

关键词: 怀孕 多少 天才

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