自耦变压器的中性点(    )直接接地或者经阻抗接地。  

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69462' and id < 4498615 and id<>'4498615' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69462' and id > 4498615 and id<>'4498615' order by id asc limit 5