房地产置业投资，包括( )两部分。
A．房地产购置和出售
B．流动资金投入和房地产出售
C．房地产开发和出售
D．房地产购置和流动资金投入
参考答案：D
The National Stadium which looks very magnificent ____ 258,000 square metres in area. [ ]
A. is measuring
B. is measured
C. measured
D. measures
能特异性刺激巨核细胞集落形成单位生长的是（）
A.EPO
B.G-CSF
C.M-CSF
D.GM-CSF
E.TPO
