开挖土方时,边坡土体的下滑力产生的剪应力,此剪应力主要由主体的()平衡,一旦土体失去平衡,边坡就会塌方。
A.弯矩
B.内摩阻力
C.轴力
D.扭矩
E.内聚力
参考答案:B, E
This extra effort makes a lasting _________, the kind that often results in some fortune with extra business.
A.conflict
B.process
C.representative
D.impression
前气囊