题目内容
如图所示,A、B两端间等效电阻为
为( )。
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69471' and id < 4499889 and id<>'4499889' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69471' and id > 4499889 and id<>'4499889' order by id asc limit 5