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IMO2015D

Author:Terence

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拼砌四邊形
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
畫出對稱圖形
画直线等分三角形的面积

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圓定理2.1
勾股定理
教學成果
三角形的外心
中华人民共和国国旗

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Logic
Arithmetic Operations
Means
Linear Equations
Frequency Distribution

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