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task2
Author:
chong yin tung
task2
GeoGebra
New Resources
異分母分數減法
兩組對邊相等和有直角的四邊形
四邊形的特性
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
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緯度、日照、影長
歪斜線夾四面體
数学教学新帮手
縫衣針
Pyth. theorem
Discover Topics
Perimeter
Equilateral Triangles
Secant Line or Secant
Geometric Transformations
Logarithmic Functions