有关系统有功功率事故备用容量，下列说法正确的是。(    )  

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69462' and id < 4498652 and id<>'4498652' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69462' and id > 4498652 and id<>'4498652' order by id asc limit 5