.--How much did you ________for the pen? --Five yuan.
A.cost
B.take
C.pay
D.buy
答案:C
—I have a bad cold.
—_____.[ ]
A. I'm sorry to hear that
B. You should see a dentist
C. I don't think so
在美国,推销观念产生于()。
A.卖方市场
B.卖方市场向买方市场过渡阶段
C.买方市场
D.买方市场向卖方市场过渡阶段