在正弦稳态交流电路中，总是消耗有功功率的元件是（   ）元件。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69472' and id < 4500036 and id<>'4500036' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69472' and id > 4500036 and id<>'4500036' order by id asc limit 5