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Author:
ChingWen GGB_Book
GeoGebra
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兩位數加法
【案例】2013年安徽高考15题
判斷球體
三位數除以一位數（一）
拼砌四邊形
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角平分线的性质
ie 8
验证2
P4菱形定義
橢圓1--同心圓法
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Histogram
Numbers
Binomial Distribution
Linear Regression
Prism