( )位于管理活动过程的终点，把好这最后一关，才不会使错误的势态扩大，有助于保证系统处于正常状态。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31820' and id < 2543304 and id<>'2543304' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31820' and id > 2543304 and id<>'2543304' order by id asc limit 5