三相发电机绕组如下图所示，电压表的读数为220V,则电压表V的读数为（）。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32633' and id < 2594913 and id<>'2594913' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32633' and id > 2594913 and id<>'2594913' order by id asc limit 5