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平行線法
Author:
chen mingchuan
GeoGebra
New Resources
兩位數加法
判斷球體
拼砌四邊形
柱體建築師
【案例】2013年安徽高考15题
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多邊形的切割與拼砌
IMO2014C
國徽
tytyty
翰林數學_2下_CH4-1_平行線的特性與定義
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Confidence Interval
Circle
Plane Figures or Shapes
Geometry
Inequalities