人体之气的生成之源是（）
A.心
B.肝
C.脾胃
D.肺
E.肾
参考答案：C
—Your MP3 is so nice. How much is it?
— It me 500. [ ]
A. bought
B. paid
C. spent
D. cost
She______ Australia.
A. be from B. is from C. are from
