“知识共享”早期版本是什么样子？
今天是J.Keisler教授是82岁诞辰。
对于J.Keisler而言，在这一天听见的最好消息是，在伟大的中国境内，人们在学习、研究“知识共享”许可协议的早期版本（CC 2.0）。
这个许可协议（CC 2.0）正好是今年大学新生手中的电子版微积分教科书所遵循的知识产权保护的许可协议。
建议大家浏览、阅读以下附件中的“知识共享”全文，至少是前几段的文字（CC协议赋予被许可者的权力）。
袁萌 陈启清 12月3日
附件：CC 2.0全文
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