属于非选择性β受体阻断药的是（）
A.普萘洛尔
B.阿替洛尔
C.拉贝洛尔
D.美托洛尔
E.比索洛尔
参考答案：A
When we were young, every evening my brother and I ______ stay at home waiting for our mother. [ ]
A. would
B. might
C. should
D. could
按照国际饲料分类法，属于能量饲料的有（）。
