A、Graphics g=new Craphics();   g.drawRect(10,0,30,40);
B、Graphics g=new Craphics();   g.drawRect(0,10,30, 40);
C、Graphics g=new Craphics();   g.drawRect(30,40,10, 0);
D、Graphics g=new Craphics();   g.drawRect(30,40,0,10);
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