理想电压源元件两端的电压恒定，流过元件的电流取关联参考方向，则电流大小为（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69472' and id < 4499990 and id<>'4499990' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69472' and id > 4499990 and id<>'4499990' order by id asc limit 5