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離心率與圓錐曲線
Author:
Ho-Kai Chen
Topic:
Ellipse
,
Hyperbola
,
Parabola
GeoGebra
New Resources
球體建築師
四邉形 (四年級) 教師版
四邊形的特性
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Task 4 Square
內分點遞迴
常數函數平移(進階)
七巧板（tangram）的副本
HKCEE 2010 Q15
Discover Topics
Quadrilaterals
Median Line
Differential Equation
Secant Line or Secant
Logarithmic Functions