正常分娩保护会阴的时间是()

A、初产妇宫口开全时

B、初产妇先露着冠时

C、经产妇宫口开大5~6cm时

D、经产妇宫口开全时

E、初产妇儿头拨露使会阴后联合皮肤膨胀时

相关专题: 经产妇  

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