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最佳解
Author:
chen mingchuan
GeoGebra
New Resources
兩位數加法
第八周作业
兩組對邊相等的四邊形
判斷球體
算柱 (兩位數)
Discover Resources
正四面体分形
平均線
範例一
时钟（序列文本）
華容道Klotski Puzzle-一橫四豎(三國版)
Discover Topics
Differential Calculus
General Quadrilateral
Angles
Geometry
Logic