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同分母分數加法
Author:
GaryLee
GeoGebra
New Resources
第八周作业2
龙形曲线-分形龙2
斐波那契螺旋弧线（表格法）
第八周作业1
活动三：应用性质
Discover Resources
五星形的頂角
圓錐曲線Conic
四則運算
二元线性规划的图解法(18.2 例4)
GeoGebra绘本团队-绘本范例
Discover Topics
Geometric Transformations
Circle
Geometry
Scalene Triangles
Orthocenter