indoctrinate 发表于 2025-3-28 18:32:12

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暴露他抗议 发表于 2025-3-28 22:03:52

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查看完整版本: Titlebook: Challenging Mathematics In and Beyond the Classroom; The 16th ICMI Study Peter J. Taylor,Edward J. Barbeau Book 2009 Springer-Verlag US 200