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任意四边形各边中点的连线必构成平行四边形.许兴华数学
Author:
许兴华数学
Topic:
General Quadrilateral
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
球体的体积推导(优化版)
三位數除以一位數(一)
GeoGebra笔记功能体验课件
【案例】2018年全国1卷理科12题
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賺賠:例2
圓繞圓外
拉面直径例题
二元一次不等式的解區域判斷
增加數據對平均數的影響
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Statistical Characteristics
Straight Lines
Logarithmic Functions
Natural Numbers
Cylinder