指令周期是 。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29994' and id < 2430771 and id<>'2430771' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29994' and id > 2430771 and id<>'2430771' order by id asc limit 5