击实试验的目的在于测定土的最优含水量以及相应的最大干密度
A. 正确
B. 错误
I have pleasure in informing you that all safety equipment is in()working order.
A. full
B. care
C. intentional
D. reasonable
It is no () arguing about this problem, because our agent will never change his mind.
A. help
B. good
C. use
D. worth