图示RLC串联电路，若（复）阻抗则正弦信号源u的角频率为（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32673' and id < 2599086 and id<>'2599086' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32673' and id > 2599086 and id<>'2599086' order by id asc limit 5