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Author:
万超杰
GeoGebra
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球体的体积推导
判斷球體
四邉形 (四年級) 教師版
四邊形的特性
柱體建築師
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love
教學－橫切面
Testing 20170308
指數與對數函數
中考数学16讲
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Integers
Mathematics
Ratios
Interest Calculation
Sequences and Series