质构正面稳定的效果将直接影响( )。
A.掘进速度
B.地层变形
C.土包内平衡压力值
D.推力
参考答案:B
我国第五次人口普查全国人口有13亿,这个13亿是一个近似数.______.
A. substantial damageB. as differentC. the terrorist attacksD. the city’s economyE. the rest of the nationF. clearly avoidableG. easily noticeable
The pain caused by the terrorist attack is ______.