-Have you ever read English novels? -__________.
A:Yes, I did
B:Yes, I have
C:No, I have
D:No, I don't
如图,线段AB的两个端点坐标分别为A(1,4),B(6,2),以原点O为位似中心,将线段AB缩小后得到线段A′B′.若AB=2A′B′,则端点B′的坐标为( )
在下列各组图形中,是全等的图形是( )