They won't go to the park if it tomorrow. [ ]
A. rains
B. will rain
C. is raining
D. rain
答案:A
变异型心绞痛宜选用().
A.硝酸甘油
B.普萘洛尔
C.硝苯地平
D.维拉帕米
E.普尼拉明
脑栓塞常发生于()
A.大脑中动脉
B.大脑前动脉
C.椎动脉
D.基底动脉
E.大脑后动脉