与左旋多巴合用有协同作用的药物（）
A.卡比多巴
B.司来吉兰
C.培高利特
D.金刚烷胺
E.苯海索
参考答案：A, B, C, D, E
_____, he makes little progress. So he is trying new methods of study. Which of the following is WRONG? [ ]
A. Hard as he works
B. Hard although he works
C. Hard though he works
D. Although he works hard
特征结构
