绞磨应放置平稳，锚固应可靠，受力后方不得有人，锚固绳应有防滑动措施，并可靠接地(   )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69530' and id < 4505091 and id<>'4505091' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69530' and id > 4505091 and id<>'4505091' order by id asc limit 5