桥墩台顶面尺寸应符合架设、检查、养护、维修、支座更换及顶梁的要求,并设不小于()的排水坡。
参考答案:2%
For some reason, we hurriedly ended our meeting, a lot of problems to be settled.
A.leaving
B.to leave
C.leave
D.left
下列一步转化中,必须与酸反应才能实现的是
A.CaCO3→CO2
B.Fe2O3→FeCl3
C.Zn→ZnSO4
D.BaCl2→BaSO4