为使胎儿双肩适应中骨盆及出口前后径进行的动作是 ( )A．内旋转B．外旋转C．下降D．俯屈E．衔接

作者: rantiku 人气: - 评论: 0

问题为使胎儿双肩适应中骨盆及出口前后径进行的动作是 ( )

选项 A．内旋转 B．外旋转 C．下降 D．俯屈 E．衔接

答案 B

解析

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