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直线倾斜角与斜率
Author:
郑飞宇
倾斜角的变化与斜率的变化关系
作者：威远中学 郑飞宇
Discover Resources
Jacob
Outer Billiards
carson
Tsunami Scenario 2
Unit 5 Constructions
New Resources
Centres in a Triangle
Untitled
Isabelle Garand_equilateral triangle
Rectangle
large angle of triangle
