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Author:李怡

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【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
判斷球體
兩位數加法

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缺角立方體
二次函數01
sun1
勒洛三角形(方型鑽子模型)
小船平移2

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Trapezoid
Interest Calculation
Multiplication
Combinatorics
Rectangle

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