图示对称三相电路中，已知电源线电压为380V.图中电压表内阻可视作无穷大，则此时电压表读数为（） 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id < 2599334 and id<>'2599334' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id > 2599334 and id<>'2599334' order by id asc limit 5