爆破挤淤法地基处理技术主要分为()。
A.爆破扩充法和爆破振夯法
B.爆破排淤填石法和爆破振夯密实法
C.爆破夯实法和爆破排淤法
D.爆破挤压排石法和爆破排淤排石法
参考答案:B
If there were no automatic washing machines, people would have to wash their clothes ______ hand or ______ hand-operated machines.
A.by; by
B.with; with
C.on; with
D.by; with
C1、C2/C3、C4教学日志中的教学项目.所用学时和学员签字等应当由学员填写。