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畢氏定理完成20170330final
Author:
許志昌
GeoGebra
New Resources
四邉形 (四年級) 教師版
畫出對稱圖形
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
第八周作业
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選四塊來拼砌正方形
圓錐曲線---橢圓
國小數與量
七巧板
COVID-19 折線圖
Addition and Subtraction of Directed Numbers (1)
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Translation
Terms
Complex Numbers
Integers
Square