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椭圆的定义
Author:
jjx01
Topic:
Conic Sections
,
Ellipse
GeoGebra
New Resources
判斷球體
【案例】圆柱体内放置一个大球六个小球
兩位數加法
柱體建築師
第八周作业
Discover Resources
Pappus古定理證明
Möbius strip
四年級面積的量度
hello
包含除法（1 ÷分數）的副本
Discover Topics
Dilation
Standard Deviation
Vectors 3D (Three-Dimensional)
Cone
Rotation