試題詳解

55. Which of the following statement is true?
(A) A NOT gate accepts two inputs
(B) The output of an XOR gate is O unless both inputs are 1
(C) The sum of two binary digits (ignoring the carry) is expressed by an OR gate
(D) The NOR gate produce the opposite results of the XOR gate
(E) Inverting the output of an AND gate is equivalent to inverting the individual signals first, then passing them through an OR gate