Yan Shi Books

Shu zi dian zi ji shu ji chu
Shu zi dian zi ji shu ji chu

By Yan Shi

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Ke li gui cang de meng xiang
Ke li gui cang de meng xiang

By Yan Shi

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Xue qian er tong ke xue jiao yu
Xue qian er tong ke xue jiao yu

By Yan Shi

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Ben shu tan tao le xue qian er tong ke xue jiao yu de ji ben li lun ji shi jian de wen ti, jie shao le xue qian er tong ke xue jiao yu de ji ben yuan li yi ji cao zuo fang fa.

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Shi Yan wen ji
Shi Yan wen ji

By Yan Shi

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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