从国际经济学角度对我国石油进口现状与发展趋势及风险进行分析，进而提出我国石油进口的安全策略。
In view of the international economics, the author analyses the present situation, trend and risks of oil importing, then suggesting safety strategies.
本文从网络经济的基本策略入手，对腾讯如何通过对产品的定位与版本划分，以及对渠道的管理而获取最大化的利润进行了详细的分析。
In this paper, I analyses how Tengxun maximize the profit by product's location, edition division and channel management from the basic rules of net economic.
正因为此，文章结合现有资料，分析与探讨了知识经济的内涵、特点及中国的应对策略。
Precisely because of this, this article, combined with data in hand, analyses and probes into the connotation and character of knowledge economy and solutions for it in China.
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