试求a,b端的戴维南等效电路的等效电压源和等效电阻为（）。 

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32671' and id < 2598851 and id<>'2598851' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32671' and id > 2598851 and id<>'2598851' order by id asc limit 5