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拋物線與光線反射
Author:
紀老師
GeoGebra
New Resources
三位數除以一位數（二）
画直线等分三角形的面积
拼砌四邊形
第八周作业
找出對稱軸
Discover Resources
平行四邊形面積
Copy of 七巧板
Midpoint Theorem and Intercept Theorem
圖形拼砌
時鐘
Discover Topics
Angles
Logic
Functions
Cube
Arithmetic