A.0 0 1 1 0 1 1 0 B.X 0 0 1 1 0 1 1 C.0 1 0 1 1 0 1 1
A.1 1 1 0 1 1 1 1 B.0 1 1 0 1 1 1 1 C.0 1 1 1 1 1 1 1
A.放大或截止 B.飽和或截止 C.放大或飽和