Acetylcholine使窦房结细胞auto-rhythmicity降低是通过

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Acetylcholine使窦房结细胞auto-rhythmicity降低是通过

A.maximal repolarization potential减小

B.threshold potential水平上移

C.If电流降低

D.膜对K+通透性增大

参考答案:

答案:膜对K+通透性增大