下图所示电路中，己知设电压表指示有效值，则电压表的读数为（）K。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32635' and id < 2595032 and id<>'2595032' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32635' and id > 2595032 and id<>'2595032' order by id asc limit 5