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一元二次方程式-應用問題(兩圓相切)
Author:
均一
GeoGebra
New Resources
第八周作业
算柱 (兩位數)
三位數除以一位數（二）
拼砌四邊形
画直线等分三角形的面积
Discover Resources
达布和
圓的展開partII
公開
封閉圖
规律点问题的动态演示-案例一
Discover Topics
Rotation
Vectors 2D (Two-Dimensional)
Isosceles Triangles
Frequency Distribution
Rational Numbers