高层建筑控制性勘探孔与一般性勘探孔深度达到什么要求?
参考答案:
控制勘探孔深度应超过地基变形的计算深度;一般性勘探孔深度应适当大于主要受力层的深度。
120+30=
— Mum, I’ve been studying English since 8 o’clock. _______ I go out and play with tom for a while ?
— No, I’m afraid not. Besides, it’s raining outside now.
A.Can’t
B.Wouldn’t
C.May not
D.Won’t