变压器带纯电阻负载运行时，变压器输入功率的性质为（   ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69442' and id < 4497087 and id<>'4497087' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69442' and id > 4497087 and id<>'4497087' order by id asc limit 5