Which of the following drugs can change the characters of action potential as moderate phase 0 depression; slow conduction and prolonging repolarization()
A. propranolol
B. propafenone
C. quinidine
D. lidocaine
E. verapamil
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If a drug has an elimination half-life (t1/2) of 25 hr and 10 mg is administered intravenously every 12.5 hr, the expected average total body store of drug would be how many times greater than the 10
A. 1.5
B. 3.0
C. 4.5
D. 6.0
E. 12
属于国际收支经常转移的项目有()
A. 劳务收入
B. 侨汇
C. 无偿捐赠
D. 赔偿
欧洲货币一体化的核心是()
A. 欧洲货币单位
B. 欧洲货币基金
C. 欧洲经济共同体
D. 欧洲经济货币联盟
布雷顿森林体系实际上是以()为中心的国际货币体系
A. 美元
B. 黄金
C. 特别提款权
D. 多种储备资产