E-commerce performs trades by means of advertising and selling goods, and provides services and information for large groups of customers in the dynamic open electronic commerce environments.

电子商务使用了刊登广告并出售货物的新方法来进行交易，并为动态开放式电子商务环境中的大组客户提供服务和信息。

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Abstract: electronic commerce provides business with new ways of advertising and selling goods, services, and information to large groups of customers in dynamic open electronic commerce environments.

摘要：电子商务使用了刊登广告并出售货物的新方法来进行交易，并为动态开放式电子商务环境中的大组客户提供服务和信息。

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The choice of buying-selling exchange mechanism is made by central bank's discretion against concrete conditions for a country in a dynamic process.

结售汇制的选择问题是一国中央银行对其具体情况的相机抉择，它本身处于动态变化之中。

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It's a similar dynamic to what is happening with Wall Street banks that committed to fund leveraged buyouts, only to have trouble selling those loans in the syndicated loan market--they have to hold them on balance sheet until the credit markets come back to life.

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