如图8-6所示挡土墙,高4m,墙背直立、光滑,墙后填土面水平。试求总侧压力(主动土压力与水压力之和)的大小和作用位置。
参考答案:
道路危险货物运输从业人员包括()。
A.乘务员
B.危险货物运输驾驶员
C.危险货物装卸管理人员
D.危险货物押运人员
Eating too much sugar and salt can ________ health problems while vegetables will benefit your bodies.[ ]
A. point to
B. agree to
C. lead to
D. refer to