当神经冲动到达运动神经末梢时，可51 起接头前膜的（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='28666' and id < 2339596 and id<>'2339596' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28666' and id > 2339596 and id<>'2339596' order by id asc limit 5