食管下括约肌的英文简写名称是（）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30916' and id < 2487941 and id<>'2487941' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30916' and id > 2487941 and id<>'2487941' order by id asc limit 5