CD13阳性见于（）。

A．急性B淋巴细胞白血病

B．急性T淋巴细胞白血病

C．急性粒细胞白血病

D．急性白血病

E．急性巨核细胞白血病

While the government says there is a(n) ______ supply of houses, prices of apartments have been going up these years.      

A．parallel

B．absent

C．abundant

D．short