以下电力系统故障属于纵向故障的是(    )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69507' and id < 4502772 and id<>'4502772' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69507' and id > 4502772 and id<>'4502772' order by id asc limit 5