Since everyone would like to find an apartment near the university, there are very few ____ apartments in the area.

A．free

B．vacant

C．empty

D．reserved

中国国际竞争力大幅度提升、是（）几个要素共同作用的结果。

A.宏观经济运行

B.政府效能

C.企业效益

D.基础设施