题目内容
The application of e-business can be divided into three categories: internal business systems, enterprise __________ and __________（企业通信与协作）and __________ __________（电子贸易）.
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Electronic commerce focuses on the use of ICT to enable the external activities and relationships of the business with individuals, groups and other businesses.
Electronic commerce involves internet shop, supply chain management, online marketing and offline marketing.
E-business involves the application of knowledge management systems.
E-commerce is easy to be confused with e-business.
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