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正4正8黏合
Author:
Wu Xiao-Ren
GeoGebra
New Resources
四邉形 (四年級) 教師版
球體建築師
兩位數除以一位數（二）
【案例】2018年全国1卷理科12题
拼砌四邊形
Discover Resources
大邊對大角
固定三角形的條件−題5
觀察軌跡
救生員的職責
青字歌
Discover Topics
Linear Equations
Tangent Line or Tangent
Tangent Function
Volume
Optimization Problems