如图3所示，正弦稳态电路中，已知电流表A1读数为1A，则电流表A及电压表V读数为（   ）。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69472' and id < 4499988 and id<>'4499988' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69472' and id > 4499988 and id<>'4499988' order by id asc limit 5