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Author:
侯孟宏
GeoGebra
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長方體平面投影 (Codex版)
四邉形 (四年級) 教師版
sanjiaohanshu
湖南省张毅郴数字教研工作室 logo
找出對稱軸
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新疆八卦城
方程式(?)
梯形堆垛
求二次函数f(x)=-x^2+ax+3区间[-2,3]上的最大值
圆跟踪案例学习
Discover Topics
Arithmetic Operations
Geometric Transformations
Rotation
Histogram
Secant Line or Secant