将坝体分成若干个坝段,横缝间距一般为()。
A. 5~10m
B. 10~15m
C. 15~20m
D. 20~25m
单项选择题 在中国古代社会中,被作为教学的基本教材和科举考试依据的是()。
A. 四书
B. 五经
C. 六艺
D. 八股文
Which of the following can be inferred from the lase paragraph?
A. Vanity has more often been found in idealists.
B. The fast-fashion industry ignores sustainability.
C. People are more interested in unaffordable garments.
D. Pricing is vital to environment-friendly purchasing.
孔径大于75mm、孔深大于5m的钻孔爆破称为()。
A. 浅孔爆破
B. 深孔爆破
C. 光面爆破
D. 预裂爆破