下列哪种药物不适用于变异型心绞痛
A. 维拉帕米
B. 地尔硫卓
C. 硝苯地平
D. 卡托普利
E. 普萘洛尔
We will have a police officer immediately.
A. on spot
B. on the spot
C. on a spot
D. on the spots
The whole house needs cleaning
A. from the top to bottom
B. from top to the bottom
C. from top to bottom
D. from the top to the bottom
Mr.Blake's secretary is alwayswhen he appears in public.
A. on a hand
B. on hand
C. on the hand
D. on hands