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關燈遊戲3x3 Lights Out Game
Author:
侯杰材
GeoGebra
New Resources
拼砌四邊形
画直线等分三角形的面积
兩位數加法
【案例】2018年全国1卷理科12题
判斷球體
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cubes
两平面夹角1
becca貝卡卡
圓與弦2的副本
探索三角形外角定理
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Constructions
Circle
Cylinder
Surface
Planes