选择题:不属于第二产程,心脏负担最重原因的项目为()。

题目内容:
不属于第二产程,心脏负担最重原因的项目为()。

A、血容量增加

B、腹压增加,内脏血液涌向心脏

C、肺循环压力增加

D、周围阻力更增大

E、心排血量及平均动脉压增加




参考答案:

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