A.110,011,101,100B.001,100,010,111C.100,110,010,101D.011,101,110,111
A.A+A=2AB.A·A=A2C.A+A=1D.A+1=1
A.非A·非B·非CB.非(ABC)C.非(非A·非B·非C)D.非(非A+非B+非C)