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椭圆内反射
Author:
dhc987
GeoGebra
New Resources
四邊形的特性
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
【案例】2013年安徽高考15题
三位數除以一位數（二）
Discover Resources
轉盤
多邊形的伸縮
勝者即正義
疊代
纏繞畫2
Discover Topics
Conditional Probability
Parabola
Linear Equations
Logarithmic Functions
Tree Diagrams