临床可用于治疗帕金森病的药物是()
A.川芎
B.丹参
C.桃仁
D.银杏叶
E.延胡索
参考答案:D
—Why was Mrs Smith angry with Jack?
—Because he worked than the others.
A.more carefully
B.worse
C.better
D.more clearly
税收的强制性体现为税收的征收依靠( )。
A.生产关系 B.生产资料所有制C.国家的政治权力 D.生产力的发达程度