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三圓相切
Author:
林士浩
GeoGebra
New Resources
活动三:应用性质
盈利與虧蝕
球体的截面
比較五件物件的重量
正方形雪花图案
Discover Resources
整數的減法
數值滑桿
封閉圖形填顏色
四塊面積
兩位數除兩位數(例子二)
Discover Topics
Differential Equation
Ratios
Conic Sections
Secant Line or Secant
Function Graph