检修作业,若需将栏杆拆除时,应装设( ),并在检修作业结束时立即将栏杆装回。
发布时间:2026-05-01
A.临时遮栏
B.固定遮栏
C.安全警示牌
D.安全警示灯
试卷相关题目
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69528' and id < 4504897 and id<>'4504897' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69528' and id > 4504897 and id<>'4504897' order by id asc limit 5
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