如图电路处于谐振时，电压表V的读数应是（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69471' and id < 4499911 and id<>'4499911' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69471' and id > 4499911 and id<>'4499911' order by id asc limit 5