电路如图11所示, 该电路的功率守恒表现为(    ) 

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68473' and id < 4421004 and id<>'4421004' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68473' and id > 4421004 and id<>'4421004' order by id asc limit 5