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29左心衰竭所致呼吸困难最主要的原因是:( )

单选题
2021-09-06 21:11
A、体循环淤血
B、肺循环淤血
C、气道阻塞
D、呼吸中枢抑制
E、呼吸运动受限
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正确答案
B

试题解析

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