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Author:
葉天宏
GeoGebra
New Resources
畫出對稱圖形
錐體建築師
第八周作业
拼砌四邊形
兩位數加法
Discover Resources
tan graph 變換
眼睛的毛病(近視及遠視)
中國火柴遊戲一
纏繞畫
初中函数
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Vectors
Square
Isosceles Triangles
Scatter Plot
Volume