备用线路投入的操作顺序是(    )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id < 4504283 and id<>'4504283' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id > 4504283 and id<>'4504283' order by id asc limit 5