A:have got
B:has got
C:haven't got
D:hasn't got
如图,四边形ABCD∽四边形A1B1C1D1,AB=12,CD=15,A1B1=9,则边C1D1的长是( )
-- I'm going to Mary's birthday party. Bye, Mum.
-- , David!
关于城市化的标志,表达不妥的是( )