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未命名
Author:
horizon liu
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數加法
判斷球體
柱體建築師
兩位數除以一位數（一）
Discover Resources
動畫軌跡御飯糰
王宏銘Proof93
Frequency Change
string art
二次函數
Discover Topics
Tangent Function
Pie Chart or Circle Chart
Ellipse
Cylinder
Logarithmic Functions