2004AIME II真题及答案解析
2004AIME II真题及答案解析 答案解析请参考文末 Problem 1 A chord of a circle is perpendicular to a radius at the midpoint of the radius. The ratio of the area of the larger of the two regions into wh...
2004AIME I真题及答案解析
2004AIME I真题及答案解析 Problem 1 The digits of a positive integer??are four consecutive integers in decreasing order when read from left to right. What is the sum of the possible remainders when?...
2005AIME II真题及答案解析
2005AIME II真题及答案解析 答案解析请参考文末 Problem 1 A game uses a deck of??different cards, where??is an integer and??The number of possible sets of 6 cards that can be drawn from the deck is 6 ...
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 ...
