氧化苦参碱具有（）
A.水溶性
B.很强的毒性
C.明显的治疗艾滋病作用
D.解痉镇痛作用
E.镇咳作用
参考答案：A
— Haven't I told you that you should be home earlier?
— Yes, but I home earlier than I usually do.[ ]
A. was coming
B. will come
C. came
D. had come
顾客报怨是一种满意程度低的最常见的表达方式，没有报怨表明顾客很满意
