一国资本项目收支顺差是增加其国际储备的最稳定和最可靠来源()
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
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