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方正外表下的爱心
Author:
林峰
GeoGebra
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幾何作圖題：切三圓（題目）
三半圓間的相切圓(Codex╱2026.10.07)
美國國旗 (Codex 版)
AI 訓練教室
國旗 (Claude 版)
Discover Resources
垂心
Task 8
GGB2
正方形周界
第八周作业2
Discover Topics
Upper and Lower Sum or Riemann Sum
Geometry
Functions
Sphere
Probability