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慢性阻塞性肺病患者发生缺氧的始动因素是

A、吸入气的氧分压过低

B、肺泡气的氧分压降低

C、动脉血氧分压降低

D、动脉血氧饱和度降低

E、动脉血氧容量降低

时间：2021-07-17 23:14 关键词：临床医学专升本病理生理学医学影像学护理学

答案解析

B

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