变压器铁心损耗将随着变压器频率的增加而增大（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32685' and id < 2599935 and id<>'2599935' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32685' and id > 2599935 and id<>'2599935' order by id asc limit 5