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[洋葱] 四边形与旋转变换
Author:
洋葱教研
GeoGebra
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拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
Discover Resources
Locus
立方體截痕
A CHAOS GAME!
正方体的十一种展开图
活工(一)Q4
Discover Topics
Scatter Plot
Conic Sections
Circumcircle or Circumscribed Circle
Parametric Curves
Median Line
