普通三相限流电抗器没有铁心，因而伏安特性是线性的。(    )

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id < 4504343 and id<>'4504343' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id > 4504343 and id<>'4504343' order by id asc limit 5