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Jiawen Yun
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Jiawen Yun
GeoGebra
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異分母分數減法
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
算柱 (兩位數)
柱體建築師
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矩形
圓錐切球
角錐體積-金字塔法
推移（x 方向）的副本
中国节灯笼
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Rational Numbers
Hypergeometric Distribution
Power Functions
Planes
Real Numbers