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S4E09 转动的圆
Author:
宋晓燕
GeoGebra
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直角坐標平面上的旋轉變換
中華民國國旗 (Codex╱2026.10.06)
小数 的副本
世界平面地圖 (Codex╱2026.10.07)
美國國旗 (Codex, 2026.10.06)
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正二十面體
精神堡壘
test1
正方形的邊長和周界
异形操场
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Rotation
Differential Calculus
Area
Probability
Linear Programming or Linear Optimization