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中国大学MOOC答案
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9. Since 1980s, people have studied how to improve the information ________ of barcode symbol.
9. Since 1980s, people have studied how to improve the information ________ of barcode symbol.
中国大学MOOC答案
数据帝
2024-05-08
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A、amount
B、density
C、number
D、crowdedness
喵查答案：
density
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10. In the process of postal operation and modern logistics, the small sized barcode plays an important role in automatic processing in ________ with computer system.
8. But for many reasons, the technology was not ________ until more than 20 years later.
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