题目内容
下列哪项对钙拮抗剂抗心绞痛的描述不正确
2021-11-09
A.阻断钙离子通道，阻止钙离子内流
B.心收缩性增强，心率加快
C.扩张冠脉，改善缺血区供血、供氧
D.心收缩性减弱，心率减慢
E.减轻心脏负荷，降低心肌耗氧
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