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光的折射
Author:
褚 军
Topic:
Mathematics
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
四邊形的特性
球體建築師
兩位數除以一位數（一）
第八周作业
Discover Resources
Klein Bottle
不等式組
Copy of 分數比較
黎曼和的副本
内外弦图
Discover Topics
Reflection
Secant Line or Secant
Geometric Mean
Exponential Functions
Diagrams