2.1.1.1.1.2.3.1b看图比较斜率的大小
知识导入：
0 of 3 问题 completed 问题: You have already completed the 测验 before. Hence you can not start it again.
测验 is loading… You must sign in or sign up to start the 测验. 您必须先完成以下操作：
0 of 3 问题 answered correctly
Your time:
时间已经过去了
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0) 2.1.1.1.1.2.3.1b.001 如图，若直线l1，l2，l3的斜率分别为k1，k2，k3，则( ) 2.1.1.1.1.2.3.1b.002 如下图，三条直线的倾斜角分别是a1，a2，a3，则下列关系正确的是( ) 2.1.1.1.1.2.3.1b.003 如图，有三条直线l1，l2，l3倾斜角分别是a₁，a₂，a₃，则下列关系正确的是( )
测验 Summary
信息
结果
结果
0 Essay(s) Pending (Possible Point(s): 0)
分类
1. 题
2. 题
3. 题
