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眼睛的毛病(近視及遠視)
Author:
Kenneth
GeoGebra
New Resources
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
找出對稱軸
拼砌四邊形
兩位數除以一位數（二）
Discover Resources
GeoGebra資料上傳
Ex.3
認識假分數
面積
Template: 對稱01
Discover Topics
Trapezoid
Special Points
Poisson Distribution
Conic Sections
Vectors 3D (Three-Dimensional)