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penrose三角形
Author:
宋晓燕
GeoGebra
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龙形曲线-分形龙
平行線的判定
第三周作业效果演示
GeoGebra数学资源(4-8年级)
第八周作业3
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Proof2 周子翔
Hyperbolic
認識半徑
Copy of 包含除法(1 ÷分數)
工作紙(1) 思考題
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Cuboid
Triangles
Polynomial Functions
Polygons
Trapezoid