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Author:
徐熙伟
GeoGebra
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垂直線的斜率
直線的斜率
三角函数 的副本
画直线等分三角形的面积
探究三角形的全等條件
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CAS View
ghseh 二次函數描點法上下平移-3
箭頭引導法計算文字乘以文數字
認識分數
图形动画3
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Hypothesis Testing
Parallelogram
Statistical Characteristics
Algebra
LCM and GCD