题目内容
如图所示电路中,a、b端的等效阻抗是()
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SQL Error: select id,body,options from ***_enewstiku where sourceid='32674' and id < 2599260 and id<>'2599260' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32674' and id > 2599260 and id<>'2599260' order by id asc limit 5