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Author:陳兪宏

艾董幾何題

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画直线等分三角形的面积
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
算柱 (兩位數)
找出對稱軸

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配方法 Completing the Square
仿生機械
固定周界的矩形
Copy of 平行四邊形的面積教材一
伸縮矩陣的副本

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Plane Figures or Shapes
Sequences and Series
Median Value
Isosceles Triangles
Linear Functions

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