兴奋性突触后电位的产生，是由于突触后膜提^了对下列哪种离子的通透性

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29016' and id < 2361151 and id<>'2361151' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29016' and id > 2361151 and id<>'2361151' order by id asc limit 5