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Author:
孟宝兴
GeoGebra
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判斷球體
sanjiaohanshu
兩位數加法
【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
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peacock
圓周公式應用題2
橢圓包絡線1060406
轉彎的文字
ckt-任意角
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Frequency Distribution
Piecewise Functions
Vectors
Similar Triangles
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