胎先露下降受阻的原因，错误的是A．骨盆狭窄B．子宫收缩乏力C．胎位异常D．胎头过大或胎儿畸形E．胎膜早破

作者: rantiku 人气: - 评论: 0

问题胎先露下降受阻的原因，错误的是

选项 A．骨盆狭窄 B．子宫收缩乏力 C．胎位异常 D．胎头过大或胎儿畸形 E．胎膜早破

答案 E

解析

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