当无功分布不合理而造成电压偏差过大时，采用的措施有（）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='10449' and id < 835876 and id<>'835876' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='10449' and id > 835876 and id<>'835876' order by id asc limit 5