湿油内生的主要原因是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='25610' and id < 2154965 and id<>'2154965' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25610' and id > 2154965 and id<>'2154965' order by id asc limit 5