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讀磅練習（公斤和克）
Author:
Anthony Or 柯志明
GeoGebra
New Resources
Earth with coastline
Nested spiral octagon
球體建築師
美國國旗 (Codex 版)
國旗 (Claude 版)
Discover Resources
線性組合3：正方形
平面幾何
中國傳統剪紙_團花
畢氏定理-切割法
相反数 思考（教材第10页）
Discover Topics
Kite
Ratios
Difference and Slope
Coordinates
Linear Functions