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test22
Author:
tan90
GeoGebra
New Resources
畫出對稱圖形
四邊形的特性
異分母分數減法
拼砌四邊形
兩位數除以一位數(一)
Discover Resources
tool for age question
大邊對大角
平行四邊形
探索“三等分点连线围成的小三角形”的特点
鸚鵡螺旋線
Discover Topics
Rational Numbers
Probability
Coordinates
Differential Calculus
Secant Line or Secant