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GeoGebra
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BkD_act15_03c
Author:
Luk Sir
GeoGebra
Нови ресурси
畫出對稱圖形
算柱 (兩位數)
判斷球體
兩位數除以一位數(二)
第八周作业
Discover Resources
三角函數
滾出直線之2
Volume of pyramid from triangular prism
阿基米德的異想世界
用交轨法求动点的轨迹方程图.许兴华数学