对于输电线路，当时，首端电压(  )末端电压。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69512' and id < 4503298 and id<>'4503298' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69512' and id > 4503298 and id<>'4503298' order by id asc limit 5