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luodeqin@keleshuxue.com
GeoGebra
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柱體建築師
第八周作业
兩位數除以一位數（一）
找出對稱軸
兩組對邊相等和有直角的四邊形
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旋轉體：Washer Method
認識函數圖形
鉛筆畫圓
優良作品2(孟倫)
拋物線相似
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Prism
Special Points
Conditional Probability
Optimization Problems
Arithmetic