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1-2-3
Author:
李政憲
GeoGebra
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兩位數除以一位數（二）
【案例】2018年全国1卷理科12题
判斷球體
【案例】2013年安徽高考15题
柱體建築師
Discover Resources
層層出現的圓
CircleIII
边长可变的正三角形上莱洛转子的滚动
橢圓2--四圓心近似法
旋轉方形
Discover Topics
Similarity Transformation or Similarity
Statistics
Sequences and Series
Surface
Arithmetic Mean