双排脚手架每—连墙件的覆盖面积应不大于()。
A.架高不大于 50m 时,40m2 B.架高不大于 50m 时,50m2 C.架高大于 50m 时,30m2 D.架高大于 50m 时,27m2 E.架高大于 50m 时,60m2正确答案AD
双排脚手架每—连墙件的覆盖面积应不大于()。
A.架高不大于 50m 时,40m2 B.架高不大于 50m 时,50m2 C.架高大于 50m 时,30m2 D.架高大于 50m 时,27m2 E.架高大于 50m 时,60m2正确答案AD
