So, as the core of electronic commerce, electronic negotiation and negotiation system are regarded, and become the hot topic of the research.

因此，作为电子商务核心部分的电子协商及其协商系统越来越受到重视，成为研究的热点。

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In the electronic commerce security transaction the on-line payment question is the most core, the most essential question.

电子商务安全交易中在线支付问题是最核心、最关键的问题。

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Electronic commerce contract is the core and basis of electronic commerce.

电子商务合同是电子商务的核心和基础。

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