引起价格变动和差异的因素很多,各种因素对商品价格的影响,是通过改变该商品的来__________实现的。[ ]
A、质量
B、包装
C、供求关系
D、价值量
答案:C
—Let's play soccer.
—______. [ ]
A. Yes, I do
B. That sounds good
C. No. It's on the desk
D. Yes, it is
—Thank you for telling me some traffic rules.
—______.[ ]
A. No, I'm glad
B. No, thanks
C. My pleasure
D. All right