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用硝酸甘油类药物使肥厚型梗阻性心肌病患者症状加重的原因是

A、扩张大动脉，降低了周围血压

B、扩张静脉，左室射血分数增加

C、扩张静脉，使回心血流量减少

D、冠状动脉收缩

E、心肌氧耗量增加

时间：2021-07-17 21:56 关键词：医药卫生类中级心血管内科学（中级） 304押题卷三

答案解析

C

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