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找出活動所用的時間
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GeoGebra Institute of Hong Kong
GeoGebra
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垂直線的斜率
三角函数 的副本
常见四边形是否是双心四边形
双心四边形
讀磅
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任務1
優良作品2
線性組合2 三角形
兩向量的比
學習活動二解的圖形
Discover Topics
Arithmetic
Linear Programming or Linear Optimization
Hypothesis Testing
Right Triangles
Variance