附子与干姜具有的共同功效是（）
A.补火助阳
B.回阳救逆
C.温肺化饮
D.温中止呕
E.温经止痛
参考答案：B
He _____ football regularly for many years when he was young.
A．was playing
B．played
C．has played
D．had played
根据药物化学结构，NSAID可分为（）
A.昔康类
B.甲酸类
C.比唑酮类
D.昔布类
E.丁酸类
