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弹簧振子的 简谐运动
Author:
褚 军
Topic:
Vectors 3D (Three-Dimensional)
GeoGebra
New Resources
第八周作业
兩位數除以一位數（一）
兩位數除以一位數（二）
四邊形的特性
柱體建築師
Discover Resources
二元一次聯立方程式圖解
(3D) Tasks: Pyramid, Paper folding & Solid of revolution[20170615]
閱讀月曆（綜合版）
基础知识
萬花筒
Discover Topics
Distributions
Power Functions
Root
Rectangle
Rational Numbers