可缓和苦寒之性，增强止呕作用的药物是（）
A.黄连
B.酒黄连
C.姜黄连
D.萸黄连
E.醋黄连
参考答案：C
----- Have a nice time in the winter vacation. -----_________.
A．Of course, I have
B．The same to you
C．Of course, I will
D．What about you
