A.(x+1)²+(y+1)²=2                    B.(x-1)²+(y-1)²=2

C.(x+1)²+(y+1)²=8                    D.(x-1)²+(y-1)²=8

以線段AB：x+y-2＝0(0≤x≤2)為直徑的圓的方程為．

1. A.
   (x+1)²+(y+1)²＝2
2. B.
   (x-1)²+(y-1)²＝2
3. C.
   (x+1)²+(y+1)²＝8
4. D.
   (x-1)²+(y-1)²＝8