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Author:鄭宏偉

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四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
球体的体积推导
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形

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Math
螢橋國中周孟承
畢氏定理證明
量度長度(厘米)
Quiz on Solving Quadratic Inequalities 解二次不等式：測驗 (v2018)

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Congruence
Hyperbola
Cosine
Sine
Parabola

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