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喉部发生炎症、水肿时,产生吸气性呼吸困难的主要机制是()

A、吸气时气道内压低于大气压

B、吸气时胸内压降低

C、吸气时肺泡扩张压迫胸内气道

D、小气道闭合

E、等压点上移至小气道

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

A

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