题目内容
地高辛负性频率作用的机制是
2021-10-15
A.增强迷走神经活性及降低交感神经活性
B.普肯耶纤维自律性升高
C.心房有效不应期缩短
D.普肯耶纤维有效不应期缩短
E.房室结传导减慢
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