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1987全国文18
Author:
常振虎
GeoGebra
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三位數除以一位數（二）
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
算柱 (兩位數)
GeoGebra笔记功能体验课件
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gjh-e01-03 未知數邊長的三角形
太极图
可积准则
Comparing_fraction
銳角三角：sin, cos
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Expected Value
Differential Equation
Hypothesis Testing
Solids or 3D Shapes
Logarithm