项目信息门户采用( )模式时,项目的主持单位应购买商品门户的使用许可证。
A.WBS
B.PIP
C.PSWS
D.ASP
参考答案:C
She bought the ring for ¥5000 three years ago, but now is it worth ____ the amount.
A.double more than
B.more double than
C.more than double
D.double than more
The Customs shall reply in writing within () from the date of receipt of the application for the refund of the duty paid and notify the applicant of its decision.
A. one month
B. two months
C. three months
D. six months