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2018秋季-初三通识班第12讲-例2
Author:
钟古思
GeoGebra
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近似值：有效數字
四邊形的特性
Fibonacci Clock
美國國旗 (Codex 版)
Earth with coastline
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解題的結果
面積2
三角柱
有多少正方体
圆锥侧面展开图
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Straight Lines
Parabola
Numbers
Sequences and Series
Variance