电压等级为330~500kV起主导作用的操作过电压类型是(    )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69522' and id < 4504115 and id<>'4504115' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69522' and id > 4504115 and id<>'4504115' order by id asc limit 5