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【立体字】劳动节5.1
Author:
孟宝兴
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
拼砌四邊形
三位數除以一位數（二）
三位數除以一位數（一）
Discover Resources
軌跡
題五
GGB5
閱讀量杯內的水位線
元旦快乐（制作：孟宝兴）
Discover Topics
Rational Numbers
Secant Line or Secant
Distributions
Quadrilaterals
Polygons