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Author:
Ng Cheuk Hei
GeoGebra
GeoGebra
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GeoGebra笔记功能体验课件
算柱 (兩位數)
異分母分數減法
【案例】2013年安徽高考15题
判斷球體
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商高定理3
试卷讲评
圓錐截面曲線
立體圖
中國火柴遊戲二的副本
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Rotation
Natural Numbers
Indefinite Integral
Linear Programming or Linear Optimization
Angles