[单选题]已知复阻抗，则其阻抗角j为（   ）。(每题0.5分)（0.5）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69425' and id < 4495560 and id<>'4495560' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69425' and id > 4495560 and id<>'4495560' order by id asc limit 5