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围棋（可摆盘、双人对战，不可人机对战）
Author:
阳光
Topic:
Constructions
GeoGebra
New Resources
柱體建築師
【案例】2013年安徽高考15题
算柱 (兩位數)
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Quiz on Compass Bearings 羅盤方位角：測驗
CLOCK
相似三角形的判定3
Tangent properties
信心水準與信賴區間的副本
Discover Topics
Orthocenter
Root
Combinatorics
Prism
Percentages