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2018秋季-初三通识班第8讲-知识点2
Author:
钟古思
GeoGebra
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兩組對邊相等和有直角的四邊形
Earth with coastline
AI 訓練教室
球體建築師
美國國旗 (Codex 版)
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座標軸工具
七巧板（tangram）
微分的意義
密鋪圖形
比例中的定值問題(一)
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Fractions
Natural Numbers
Linear Equations
Complex Numbers
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