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錢幣換算
Author:
Tsai, Dung Jung
GeoGebra
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异形操场
第八周作业
第八周作业1
百分數及其應用
科赫雪花
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大邊對大角
任何三角形內角和180度(五上數翰４－２)
圖形周界_H
circle
線性規劃例6
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Differential Calculus
Constructions
Symmetry
Integral Calculus
Circle