治疗原发性血小板增多症的细胞毒药物有（）
A.羟基脲
B.阿那格雷
C.利妥昔单抗
D.α-干扰素
E.格列卫
参考答案：A, B, D
— What ______ your bike yesterday?
— It didn't work. [ ]
A. was happened in
B. happened in
C. was happened to
D. happened to
患者男，外伤后失血，血压80/56mmHg，脉率130次／分，估计失血量达（）
A.400～600ml
B.650～750ml
C.800～1600ml
D.1650～2000ml
E.>4000ml
