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圆在底面滚动动画
Author:
赵林
GeoGebra
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GeoGebra笔记功能体验课件
錐體建築師
画直线等分三角形的面积
柱體建築師
兩位數除以一位數（一）
Discover Resources
根據百分率找數量（一）: 例4
P6 Maths
比例中的定值問題(一)
比一比看谁小
dingding_test
Discover Topics
Similar Triangles
Scatter Plot
Parallelogram
Geometric Transformations
Trapezoid