《中国药典》中对黄连进行定性鉴别和含量测定的指标成分为（）
A．盐酸麻黄碱
B．苦参碱
C．盐酸小檗碱
D．硫酸阿托品
E．士的宁
参考答案：C
— Your English is pretty good! How about _____ some advice to me?
— With pleasure. [ ]
A. give
B. gives
C. giving
