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分數加減
Author:
iedc
GeoGebra
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兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
兩位數除以一位數(二)
GeoGebra笔记功能体验课件
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藝術
Reflectionnn
閱讀月曆
hjzx123456
拼貼11939
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Histogram
Cone
Matrices
Symmetry
Boxplot