正常胎儿血液循环中血氧含量最高的部位是A、脐静脉B、脐动脉C、肺动脉D、左心房E、主动脉

作者: rantiku 人气: - 评论: 0

问题正常胎儿血液循环中血氧含量最高的部位是

选项 A、脐静脉 B、脐动脉 C、肺动脉 D、左心房 E、主动脉

答案 A

解析

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