学习者在感觉通道上存在三种典型类型，g|J( )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='23629' and id < 2055895 and id<>'2055895' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23629' and id > 2055895 and id<>'2055895' order by id asc limit 5