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探究平行四邊形的特性
Author:
Ng KC
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
三位數除以一位數（一）
三位數除以一位數（二）
【案例】2018年全国1卷理科12题
Discover Resources
最大斜率的直線
Prism and Cylinder 3
垂心軌跡
Copy of 峯01
元旦快乐（制作：孟宝兴）
Discover Topics
Algebra
Pythagoras or Pythagorean Theorem
Trigonometry
Quadratic Equations
Isosceles Triangles