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问题：
[单选题]当兴奋性递质与突触后膜结合后，引起突触后膜：
A、钠、钾离子通透性增加，出现去极化
B、钠、钙离子通透性增加，出现超极化
C、钾、氯离子通透性增加，出现超极化
D、钾、钙离子通透性增加，出现去极化
E、钠、氯离子通透性增加，出现去极化
参考答案：
A
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