成本的控制周期应视项目的规模和特点而定．一般的项目控制周期为( )。
A．一旬
B．一个月
C．一季度
D．一年
参考答案：B
What _____ you _____ if you had a million dollars?
A．would, did
B．will, do
C．would, do
D．will, did
Do you mind my smoking here?（）
A.No, thanks.
B.Yes, I do
C.Yes. I'd rather not
D.Good idea.
