无先兆的偏头痛持续时间为()
A.4~72h
B.4~48h
C.8~72h
D.8~72h
参考答案:A
---He was nearly killed in a car accident.
---Oh, when was ____exactly?
---It was in 2009______________he was driving to the airport to pick up his father.
A. this; that B. that; when C. that; that D what; when
窗口指导属于( )货币政策工具。
A.直接信用控制的
B.选择性
C.一般性
D.间接信用控制的