骨骼肌细胞中横管的作用是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30798' and id < 2480365 and id<>'2480365' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30798' and id > 2480365 and id<>'2480365' order by id asc limit 5