耐火等级为二级时楼板和吊顶的耐火极限应满足()
A: 1.5h,0.25h
B: 1.00h,0.25h
C: 1.50h,0.15h
D: 1.00h,0.15h
A: 1.5h,0.25h
B: 1.00h,0.25h
C: 1.50h,0.15h
D: 1.00h,0.15h
举一反三
- 耐火等级为二级时楼板和吊顶的耐火极限应满足() A: 1.5h,0.25h B: 1.00h,0.25h C: 1.50h,0.15h D: 1.00h,0.15h
- 耐火等级为二级时楼板和吊顶的耐火极限应分别满足（）。 A: 1.50h和0.25h B: 1.00h和0.25h C: 1.50h和0.15h D: 1.00h和0.15h
- 耐火等级为二级时楼板和吊顶的耐火极限应分别满足（）。 A: 1.50h和0.25h B: 1.00h和0.25h C: 1.50h和0.15h D: 1.00h和0.15h
- 25. 耐火等级为二级时楼板和吊顶的耐火极限应分别满足( )。 A: 1.50h和0.25h B: 1.00h 和0.25h C: 1.50h和0.15h D: 1.00h 和0.15h
- 25. 耐火等级为二级时楼板和吊顶的耐火极限应分别满足( )。 A: 1.50h和0.25h B: 1.00h 和0.25h C: 1.50h和0.15h D: 1.00h 和0.15h