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選擇合適的「中間人」
Author:
LAI KA MING
GeoGebra
New Resources
龙形曲线-分形龙
圓的基本性質
撒针估算面积实验
直線的斜率:水平變化 & 鉛垂變化
正方形雪花图案
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sin(x) 的函數圖形
n star
一組物件的幾分之幾(練習)
七巧板
Triangle
Discover Topics
Fractions
Conic Sections
Right Triangles
Parallelogram
Parabola