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一母双胎是什么意思
更新时间: 2021-04-15 19:59:24  

1、人体一次妊娠分娩两个胎儿,称孪生。通常称为双胞胎。

2、孪生可分为单卵(同卵)孪生(monozygotic twins)和双卵(异卵)孪生(dizygotictwins)。前者在双胎中的出现率小于后者。如果是双胞胎,双胎都是存活的,就一定有两个胎心,双胞胎的胎心可以是一样,但不可以是一个。

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