容量大于1800kVA的三相变压器一般不采用（      ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68476' and id < 4421253 and id<>'4421253' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68476' and id > 4421253 and id<>'4421253' order by id asc limit 5