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#23363: TED ED


70634BRYCE (73ryce)

d872. 過橋問題 -- UVa 10037 簡易版 | From: [220.133.71.242] | 發表日期: 2020-11-10 20:40

https://www.youtube.com/watch?v=7yDmGnA8Hw0&ab_channel=TED-Ed

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