【单选题】 The purpose of using UPC is to improve efficiency in stores.
A．
| A. right |
B．
| B. wrong |
C．
| C. Doesn't say |
网考网参考答案：A
网考网解析：
在第二段谈到了这种条形码带来的快捷和便利。 查看试题解析出处>>
【单选题】 The purpose of using UPC is to improve efficiency in stores.
A．
| A. right |
| B. wrong |
| C. Doesn't say |
发布评论 查看全部评论