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离心率与椭圆的扁平程度 的副本
Author:
大咪娘
GeoGebra
New Resources
三位數除以一位數（一）
第八周作业
找出對稱軸
畫出對稱圖形
兩位數除以一位數（一）
Discover Resources
waaachen
Roger Test Draw
Time
四下_認識小數(教師版)
周界2
Discover Topics
Geometry
Matrices
Boxplot
Mode
Solids or 3D Shapes