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優良作品1
Author:
Ching-Hui Chou
GeoGebra
New Resources
三位數除以一位數（二）
兩位數除以一位數（二）
拼砌四邊形
錐體建築師
異分母分數減法
Discover Resources
Animacja (kółka)
內切圓滾動有圖更新
高中, 直線與點對稱
垂直2
縫衣針
Discover Topics
Secant Line or Secant
Natural Numbers
Geometry
Kite
Quadratic Equations