在发达的市场经济中,利率对于货币需求的大小起着极为重要的作用。试举出西方国家对这一规律的实际运用。
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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