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優良作品2(薇如)
Author:
Ching-Hui Chou
GeoGebra
New Resources
錐體建築師
兩位數加法
【案例】2013年安徽高考15题
三位數除以一位數（二）
柱體建築師
Discover Resources
九點圓 (9-Point Circle)
正n邊形內角與外角
Salaries Tax in Hong Kong 薪俸稅
Spiral Polyskelion
P3 3S1 製作平行四邊形 / Construct Parallelograms
Discover Topics
Similarity Transformation or Similarity
Logic
Centroid or Barycenter
Translation
Quadratic Equations