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Author:
Ching-Hui Chou
GeoGebra
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四邊形的特性
兩組對邊相等和有直角的四邊形
拼砌四邊形
【案例】2013年安徽高考15题
四邉形 (四年級) 教師版
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test123
救生員的職責
題一
test01
weihaoxia
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Statistical Characteristics
Volume
Random Experiments
Solids or 3D Shapes
Probability