关于电力系统的有功备用容量，下述说法中错误的是(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68479' and id < 4421498 and id<>'4421498' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68479' and id > 4421498 and id<>'4421498' order by id asc limit 5