某 500kV 变电站进行断路器选型，下列选择及理由正确的是（ ）（0.5）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69421' and id < 4494891 and id<>'4494891' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69421' and id > 4494891 and id<>'4494891' order by id asc limit 5