2. 外语
  3. The figures printed below the stripes are codes of the producer and the product. The purpose of using UPC is to improve efficie

The figures printed below the stripes are codes of the producer and the product. The purpose of using UPC is to improve efficie

admin2010-07-07  59
问题 The figures printed below the stripes are codes of the producer and the product.
The purpose of using UPC is to improve efficiency in stores.
选项 A、Right
B、Wrong
C、Doesn’t say
答案A
解析 在第二段谈到了这种条形码带来的快捷和便利。
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