在一经合闸即可送电到工作地点的断路器和隔离开关的操作把手上，均应悬挂（  ）的标示牌。 

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69486' and id < 4500747 and id<>'4500747' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69486' and id > 4500747 and id<>'4500747' order by id asc limit 5