A. Plant p=new Plant ();
B. Plant a1 =new Flower();
C. Flower f=new Rose ();
D. Rose r=new Plant ();
满分:2分♦
(责任编辑:admin) |
A. Plant p=new Plant ();
B. Plant a1 =new Flower();
C. Flower f=new Rose ();
D. Rose r=new Plant ();
满分:2分♦
(责任编辑:admin) |