题目内容
无论对称负载为Y或△联结，每相有功功率都应为
。（ ）
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69318' and id < 4487768 and id<>'4487768' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69318' and id > 4487768 and id<>'4487768' order by id asc limit 5