题目内容：
化学性突触传递的特征中，下列选项错误的是（ ）A．双向性传递
B．兴奋节律的改变
C．总和
D．对内环境变化敏感
E．后放
参考答案：
选择题：化学性突触传递的特征中,下列选项错误的是( )A.双向性传递 B.兴奋节律的改变 C.总和
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- 题目类型：选择题
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