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圆锥曲线第二定义
Author:
冯伟冀
Topic:
Conic Sections
GeoGebra
New Resources
四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
錐體建築師
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
Discover Resources
題一
Ruler
Properties of a Rectangle
No.3
三角形的心的副本
Discover Topics
Prism
Tangent Function
Angles
Geometry
Parallelogram