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Reply To: 保变原则

Home Forums 《冒号课堂》讨论区 保变原则 Reply To: 保变原则

#1172
Todd
Member

我看的是这篇:http://im.ufba.br/pub/MATA63/Documentos/ProtectedVariation%5B1%5D.pdf

也可以google “protected variation the importance of being closed”

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