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工具1
Author:
sidney100
GeoGebra
New Resources
平行線的判定
第八周作业1
椭圆内切圆链
中华人民共和国国旗
正方形雪花图案
Discover Resources
龍騰4加分講義
三角形的內心與內切圓
空間座標系
放射狀旋轉圖形(2)
雜思
Discover Topics
General Quadrilateral
Optimization Problems
Ratios
Set Theory
Cosine