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黃斌
GeoGebra
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常见四边形是否是双心四边形
活动三：应用性质
科氏力 (Coriolis Force)
盈利與虧蝕
第八周作业2
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waaachen
直線族
平面直角坐标系
等弦則等弦心距
翰林數學_2下_CH3-1_三角形的內角和
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Hyperbola
Matrices
Exponential Functions
Straight Lines
Diagrams