A.禁止高处作业不使用安全带 B.禁止现场流动吸烟 C.禁止动火作业未采取防护措施 D.高处作业时,禁止往下面乱抛材料和工具
A.1:29:300 B.1:30:300 C.1:30:200 D.1:29:200
A.0173186000 B.0173196000 C.0173186666 D.0173186789