电力系统在运行中经常发生故障，大多数是断线故障，少数是短路故障。(  )

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69514' and id < 4503456 and id<>'4503456' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69514' and id > 4503456 and id<>'4503456' order by id asc limit 5