心室肌动作电位与骨骼肌动作电位的主要区别是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30919' and id < 2488254 and id<>'2488254' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30919' and id > 2488254 and id<>'2488254' order by id asc limit 5