题目内容
奎尼丁的药理作用是
2021-10-28
A.可使正常窦房结自律性明显降低
B.直接作用于心肌,适度抑制Na+内流
C.可缩短动作电位时程
D.可加快心脏传导速度
E.竞争性阻断N受体,有抗胆碱作用
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