判断题
正确
A.61H B.62H C.63H D.70H
A.00H,FFH B.00H,00H C.FFH,FFH D.FFH,00H
A.(CY)=0,(OV)=0 B.(CY)=0,(OV)=1 C.(CY)=1,(OV)=0 D.(CY)=1,(OV)=1
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