单选题
发布日期:2021-03-22
Keep a load on the hoist until all personnel are finished working
Set the load on a movable dolly when transportation may be needed
Have one man keep a hand on the load to steady it
Insure that the lifting gear capacity is not exceeded
题王网让考试变得更简单
扫码关注题王,更多免费功能准备上线!
此试题出现在
目前常用的永久栓塞材料有()
下列哪项在心主血脉中起关键作用?( )
关于脑卒中患者恢复期,正确的说法是( )。
从古代的“把酒问青天”“嫦娥奔月”,到今天的“神舟”号系列对太空的探索,再到“天宫一号”的发射,我们对太空的了解越来越深入,这说明( )。①追求真理是一个永无止境的过程②人类对自然界的认识是一帆风顺的③实践锻炼并提高了人的认识能力④实践决定认识,认识是实践的目的
福利彩票的宗旨是“扶老、助残、救孤、济困、赈灾”。
用甘露醇降低颅内压,正确的是()
储罐设计压力高于储罐最高工作压力。()
党的十八大提出两个“百年目标”,这两个百年目标是指( )。
下列关于风险管理信息系统的表述中,正确的有()。
以下哪种场景你必须执行迁移而不能执行升级?()
暂无相关推荐~
To safeguard the operator and other personnel working on or near a hoisting oper...
To safeguard the operator and other personnel working on or near a hoisting oper...
Before personnel are lifted from a vessel in a personnel basket,the vessel shoul...
Before personnel are lifted from a vessel in a personnel basket,the vessel shoul...
The flame safeguard control system of a large automatic auxiliary boiler will pr...
The flame safeguard control system of a large automatic auxiliary boiler will pr...
保障措施(Safeguard)
All personnel should be familiar with the lifeboats ()
All personnel should be familiar with the lifeboats ()
下列有关在交换机上发出的banner login"Authorized personnel Only"命令的说法中哪项正确()。