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【单选题】
关于兴奋性突触传递的叙述,哪一项是错误的
A.
突触前轴突末梢去极化
B.
Ca 2+ 由膜外进入突触前膜内
C.
突触小泡释放递质,并与突触后膜受体结合
D.
突触后膜对Na + 、K + 、Ca 2+ ,特别是K + 的通透性升高
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