药物经济学研究的目的是（）
A.促进临床合理用药
B.有利于投资者的决策
C.改善医疗条件和环境
D.便于开展医疗保险工作
E.提高医疗质量
参考答案：A
____ ， I will not buy it.
A．Much as do I like it
B．As much I like it
C．Much as I like it
D．As I like it much
The American Civil War lasted four years before the North won ____ the end. [ ]
A. by
B. at
C. in
D. on
