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习题,任意三点不在同一直线上的等四个点,最多能作出几个三角形
Author:
dx
习题,任意三点不在同一直线上的等四个点,最多能作出几个三角形
GeoGebra
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四邉形 (四年級) 教師版
拼砌四邊形
畫出對稱圖形
球體建築師
異分母分數減法
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linear function
三塊斜線面積的一塊
堆剁蕊
Doppler Effect and Shockwave
弹簧的副本
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Diagrams
Optimization Problems
Tangent Line or Tangent
Binomial Distribution
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