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優良作品2(孟倫)
Author:
Ching-Hui Chou
GeoGebra
New Resources
画直线等分三角形的面积
兩位數除以一位數（一）
異分母分數減法
算柱 (兩位數)
第八周作业
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平行與角度
路徑四動畫
數理資優班 寒假探索營 2017 1 24
面積
圖形D
Discover Topics
Plane Figures or Shapes
Quadratic Equations
Similarity Transformation or Similarity
Definite Integral
Centroid or Barycenter