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劉德晧proof14
Author:
郭亮偉
GeoGebra
New Resources
第八周作业
三位數除以一位數（二）
找出對稱軸
四邉形 (四年級) 教師版
【案例】2013年安徽高考15题
Discover Resources
Travel Graph (Two Bodies) 行程圖 (雙物體)
Decimal
時間
circle1
旋轉體：Washer Method的副本
Discover Topics
Geometric Distribution
Angles
Variance
Exponent
Arithmetic Mean