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GeoGebra
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【案例】2018年全国1卷理科12题
錐體建築師
兩位數除以一位數（二）
【案例】2013年安徽高考15题
異分母分數減法
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整數或分數÷分數_ 工作紙（一）_題3b
反射定律 Law of Reflection
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Sunline
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Optimization Problems
Geometric Mean
Cosine
Parabola
Sine