2005AIME I真题及答案解析
2005AIME I真题及答案解析 答案解析请参考文末 Problem 1 Six congruent circles form a ring with each circle externally tangent to two circles adjacent to it. All circles are internally tangent to a ci...
2006AIME II真题及答案解析
2006AIME II真题及答案解析 答案解析请参考文末 Problem 1 In convex hexagon , all six sides are congruent, and are right angles, and and are congruent. The area of the hexagonal region is Find . ...
2019丘成桐中学科学奖（经济金融建模）分赛区比赛获奖名单
2020丘成桐中学科学奖大陆赛区规则 2020丘成桐中学科学奖大陆赛区报名官网 2020丘成桐中学科学奖亚洲赛区规则 2020丘成桐中学科学奖亚洲赛区报名官网 2020 丘成桐中学科学奖海外赛区规则 2020 丘成桐中学科学奖海...
2006AIME I真题及答案解析
2006AIME I真题及答案解析 答案解析请参考文末 Problem 1 In quadrilateral is a right angle, diagonal is perpendicular to and Find the perimeter of Problem 2 Let set be a 90-element subset of an...
2019丘成桐中学科学奖（计算机）分赛区比赛获奖名单
2020丘成桐中学科学奖大陆赛区规则 2020丘成桐中学科学奖大陆赛区报名官网 2020丘成桐中学科学奖亚洲赛区规则 2020丘成桐中学科学奖亚洲赛区报名官网 2020 丘成桐中学科学奖海外赛区规则 2020 丘成桐中学科学奖海...
2007AIME II真题及答案解析
2007AIME II真题及答案解析 答案解析请参考文末 Problem 1 A mathematical organization is producing a set of commemorative license plates. Each plate contains a sequence of five characters chosen from ...
2007AIME I真题及答案解析
2007AIME I真题及答案解析 答案解析请参考文末 Problem 1 How many positive perfect squares less than are multiples of 24? Problem 2 A 100 foot long moving walkway moves at a constant rate of 6 feet p...
2019丘成桐中学科学奖（生物）分赛区比赛获奖名单
2020丘成桐中学科学奖大陆赛区规则 2020丘成桐中学科学奖大陆赛区报名官网 2020丘成桐中学科学奖亚洲赛区规则 2020丘成桐中学科学奖亚洲赛区报名官网 2020 丘成桐中学科学奖海外赛区规则 2020 丘成桐中学科学奖海...
2008AIME II真题及答案解析
2008AIME II真题及答案解析 Problem 1 Of the students attending a school party, of the students are girls, and of the students like to dance. After these students are joined by more boy students, ...
