单项选择题
如图所示门电路,按正逻辑体制,电路实现的逻辑式F=()
A. B.A*B*C C.A+B+C D.
A.余3码B.循环码C.格雷码D.8421码
A.(1101011.001)2 B.(01101010.01)2 C.(11101011.01)2 D.(01100111.01)2