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自由知識文化日曆/2 月 9 日
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來自華夏公益教科書，面向開放世界的開放書籍
1998 年的今天，
《開放原始碼定義》
宣佈釋出，它是評估軟體許可所授予的自由的最廣泛使用的一組標準之一。它改編自 Debian 自由軟體準則。
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書：自由知識文化日曆
華夏公益教科書
