凡在坠落高于基准面()m及以上的高处进行的作业,都应视作高处作业,在没有脚手架或者在没有栏杆的脚手架上工作,高度超过()m时,应使用安全带。
A、2,15A
暂无解析
Sofarscientistshaveonlyacquired________understandingofthephysicalprocessesthatcauseearthquakes.
WethankyouforyourletterofMay5th,____yourpurchasefromusof5000tonsGreenBeans.
Wearewillingtorenewtheagreementonthesameterms____last.
Don’ttrusteverything________youhavereadinthenewspapers.
YourfirmhasbeenrecommendedtousbytheJamesOlivier&Co.____wehavedonebusinessformanyyears