解鎖國際數理化生競賽進階之路之AMC
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美國的數學競賽難不難看看這道題就知道了
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2008-1972USAMO美國數學奧賽歷年真題打包下載
翰林國際教育整理了1972-2008 USAMO全部真題 供學生免費下載使用
2009 USAMO Problems真題及答案
2009 USAMO Problems真題及答案 完整版真題免費下載 +答案解析請參考文末 真題下載請前往【純真題】小程序 Day 1 Problem 1 Given circles??and??intersecting at points??and?, let??be a line through the cent...
2010 USAMO Problems真題及答案
2010 USAMO Problems真題及答案 完整版真題免費下載 +答案解析請參考文末 Day 1 Problem 1 Let??be a convex pentagon inscribed in a semicircle of diameter?. Denote by?,?,?,??the feet of the perpendicular...
2011 USAMO Problems真題及答案
2011 USAMO Problems真題及答案 完整版真題免費下載 +答案解析請參考文末 Day 1 Problem 1 Let?,?,??be positive real numbers such that?. Prove that Problem 2 An integer is assigned to each vertex ...
2010 USAJMO Problems真題及答案
2010 USAJMO Problems真題及答案 完整版真題免費下載 +答案解析請參考文末 Day 1 Problem 1 A permutation of the set of positive integers??is a sequence??such that each element of??appears precisely one ...
2011 USAJMO Problems真題及答案
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2012 USAMO Problems真題及答案
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