A:±6
B:﹣6
C:3
D:±3
在△ABC中,已知AB→·AC→=AB→·CB→=1则AB→的值为 ( )
①她面前不是只有一堵又厚又冷的墙吗?
②桌上不是铺着雪白的台布吗?
下列函数中,是反比例函数的是( )
I saw him in the library yesterday. He a book at that moment.