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Author:
郭淳靖
Topic:
Angles
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兩位數除以一位數（二）
【案例】2013年安徽高考15题
球体的体积推导（优化版）
三位數除以一位數（二）
算柱 (兩位數)
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多邊形
chap. 1 by ck
a Geogebra file created by the first pre-service teacher
三角四星
百分數與分數
Discover Topics
Line Segment
Solids or 3D Shapes
Linear Programming or Linear Optimization
Confidence Interval
Linear Functions