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圓和圓位置關係
Author:
Loi Teng Chong
GeoGebra
New Resources
平行線的判定
异形操场
撒针估算面积实验
圓的切線方程
第八周作业2
Discover Resources
GGB5_3D:展開圖
判斷球體 3
立方體截痕
阿波羅尼亞圓的副本
淘宝网
Discover Topics
Matrices
Statistics
Curve Sketching
Prism
Confidence Interval