题目内容
电力变压器的空载电流是（ ）。
2025-10-20
A.产生主磁通的励磁电流
B.滞后于电压近90度的无功电流
C.额定电流的2%—10%
D.以上都对
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69399' and id < 4492838 and id<>'4492838' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69399' and id > 4492838 and id<>'4492838' order by id asc limit 5