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dragon(龙)
Author:
赵林
GeoGebra
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四邊形的特性
AI 訓練教室
長方體平面投影 (Codex版)
算柱 (兩位數)
美國國旗 (Claude 版)
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proof ASA
認識分數的副本
变化的三角形的外心.许兴华数学
勾股定理（几何原本）的副本
应用与艺术
Discover Topics
Cone
Tangent Line or Tangent
Arithmetic Operations
Conic Sections
Real Numbers