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工具1
Author:
sidney100
GeoGebra
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四邊形的特性
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
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分數1
粒子的拋物線軌跡
數學電腦繪圖與解題
橢圓2-四圓心近似法
洋葱中考视频
Discover Topics
Distributions
Incircle or Inscribed Circle
Geometry
Numbers
Vectors 2D (Two-Dimensional)