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自由知识文化日历/2 月 9 日
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来自维基教科书，面向开放世界的开放书籍
1998 年的今天，
《开放源代码定义》
宣布发布，它是评估软件许可所授予的自由的最广泛使用的一组标准之一。它改编自 Debian 自由软件准则。
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