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一元二次方程式-應用問題(兩圓相切-2)
Author:
均一
GeoGebra
New Resources
畫出對稱圖形
判斷球體
找出對稱軸
算柱 (兩位數)
四邊形的特性
Discover Resources
三角形內角和(SWC)
three circle touching each other
圆锥曲线统一定义单晨
腾讯动漫
沪教版练习册7.4第4题