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GeoGebra Lesson
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布丰投针实验
Author:
朱亮
GeoGebra
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三半圓間的相切圓(Codex╱2026.10.07)
Earth with coastline
畫出對稱圖形
近似值：有效數字
國旗 (Claude 版)
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多項式函數
千年曆2
Ch 12 Angles related to straight lines
Copy of 畢氏樹
長方形的周界與長和闊的關係 (教師版)
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Linear Functions
Function Graph
Numbers
Integers
Plane Figures or Shapes