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艾雪鑲嵌
Author:
yuchengda
GeoGebra
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四邊形的特性
算柱 (兩位數)
Earth with coastline
國旗 (Claude 版)
判斷球體
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四下_面積（一）(教師版)
三角形四心
【練習】資料整理與統計圖表─直方圖
Tool3P4P之二
X and Y.
Discover Topics
Perimeter
Combinatorics
Integral Calculus
Geometric Mean
Coordinates