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學測105-9
Author:
簡廷豐
GeoGebra
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錐體建築師
判斷球體
第八周作业
球体的体积推导（优化版）
找出對稱軸
Discover Resources
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
圓外冪性質
拋物線6--包絡線法
学习计算器套件
dingding_test
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Limits
Root
Kite
Probability
Trapezoid