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开源中国 www.oschina.net 是目前中国最大的开源技术社区。我们传播开源的理念，推广开源项目，为 IT 开发者提供了一个发现、使用、并交流开源技术的平台。目前开源中国社区已收录超过两万款开源软件。

Good old Wikipedia, great new look

Facebook helps you connect and share with the people in your life.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

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Greenvision is energy audit company dedicated to providing clients with the highest level of energy service by prioritizing opportunities for saving energy by cost effectiveness while maintaining or improving human comfort, health, and safety.

Learn Chinese vocabulary with the innovative Chinese vocabulary trainer Han Trainer Pro. Due to its innovative approach, the free software on this website allows you to learn the Chinese language and its characters. As the words are topically sorted,...