磁电式仪表测量电流i=3+4V2sinwt，其示数为（）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='34133' and id < 2734395 and id<>'2734395' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='34133' and id > 2734395 and id<>'2734395' order by id asc limit 5