先天性上胞下垂的治疗应为（）。
A.健脾化湿
B.健脾益气
C.温补脾肾
D.升阳益气
E.补益肝肾
参考答案：C
The number of the people who can afford to buy their own house ______ more than 60%,but a number of houses _______.
A．are; hasn’t been built
B．are; has built
C．is; haven’t been built
D．is; have built
到2005年，已经有（）个人以太空游客的身份遨游太空。
A、1
B、2
C、3
