试题与答案

血管扩张药治疗心功能不全的主要作用机制是()。 A.增强心肌收缩力 B.改善心肌供氧

题型:单项选择题

题目:

血管扩张药治疗心功能不全的主要作用机制是()。

A.增强心肌收缩力

B.改善心肌供氧

C.降低心脏的前后负荷

D.降低心肌耗氧

E.减慢心率

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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