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陳人瑜proof81

Author:郭亮偉

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兩位數加法
找出對稱軸
拼砌四邊形
異分母分數減法
兩位數除以一位數（一）

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Clock24hour
螢橋國中-林安哲
橢圓1--同心圓法
相遇问题
双动点求三角形最大面积演示

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Definite Integral
Curve Sketching
Parallelogram
Orthocenter
Hypothesis Testing

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