题目内容
下面逃生缓降器的组成示意图中,“4” 是( )。
2021-09-26
A.绳索卷盘 C.调速器
B.墙面固定栓 D.安全带
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='24356' and id < 2100198 and id<>'2100198' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24356' and id > 2100198 and id<>'2100198' order by id asc limit 5