—______does your brother do?
—He is a policeman.[ ]
A. When
B. Why
C. Where
D. What
答案:D
A.→+
B.+→+
C.+→++10
D.→+
下列治疗组合正确的是()
A.急性再障一雄激素
B.MDS-手术治疗
C.缺铁性贫血一输血
D.遗传性球形细胞增多症一脾切除
E.白血病一放疗