单项选择题

There are new concerns about the ________________ of the U.S. economic expansion.

A．duration
B．momentum
C．prospect
D．future
<上一题 目录 下一题>
热门 试题

单项选择题
For a playoff player, the whole season lasts _____________ months.
A．6
B．8
C．10
D．11
填空题
exemptions
相关试题