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1977上海文2
Author:
常振虎
GeoGebra
New Resources
國旗 (Claude 版)
第八周作业
畫出對稱圖形
Claude 解幾何題
美國國旗 (Codex 版)
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阿波羅尼斯問題：與三圓相切的圓
四下_面積（一）(教師版)
三角形數
赋值保存法
撒针估算面积实验
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Circle
Complex Numbers
Cube
Statistics
Tangent Function