A.To encourage customers to join in a special program for free. |
B.To ask for the feedback of the customers. |
C.To express festive greetings to the consumers. |
D.To encourage customers to consume more on line. |
A.$ 21.97 | B.$ 25.96 |
C.$ 16.48 | D.$ 9.48 |
A.direct | B.unlimited |
C.convenient | D.cheap |
A.They lose much in the special program. |
B.The customers spend more in the future. |
C.This program can offer a double-win in a long term. |
D.Amazon.com is a very popular on-line bookstore. |