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1986全国文7
Author:
常振虎
GeoGebra
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【案例】2013年安徽高考15题
球體建築師
判斷球體
柱體建築師
球体的体积推导(优化版)
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圓的面積
三角函數圖形(全)
三角學
Similar Figures (QMSS)
函数作图工具的副本
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LCM and GCD
Congruence
Tangent Line or Tangent
Symmetry
Derivative