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ptccs2new
Author:
Cheung Wing Chuen
GeoGebra
New Resources
四邊形的特性
【案例】2013年安徽高考15题
三位數除以一位數(一)
三位數除以一位數(二)
四邉形 (四年級) 教師版
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正四角錐
拋物線
semops_圓錐
內外角平分線的副本
相反数 探究 (教材第9页)
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Trapezoid
Hypothesis Testing
Definite Integral
Sequences and Series
Equilateral Triangles