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Author:
Lin Ching Chieh
GeoGebra
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GeoGebra笔记功能体验课件
判斷球體
算柱 (兩位數)
兩位數除以一位數（一）
兩位數加法
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練習
semops_圓柱
九點圓
F2_Ch11.2_三角學(邊長與角的關係)
三等分点连线围成的三角形特征（唐老师）
Discover Topics
Prism
Rotation
Geometry
Addition
Real Numbers