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2009年是联合国的天文学年，用以纪念400年前——1609年伽利略第一次用望远镜观察天体，开创了以观测和实验的方法追寻宇宙起源的时代。伽利略观察标志着现代科学的兴起。
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Spree is the complete open source commerce solution for Ruby on Rails originally developed by Sean Schofield. It is completely free to use and is licensed under the New BSD License.
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Ward relates how he came up with the metaphor of debt to explain the need for refactoring in interative development.
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wish jar, a magic jar
links for 2009-03-03
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© Mingli Yuan 2010.
© Mingli Yuan 2010.