According to DeMorgan’s theorems, the following equality(s) is(are) correct:根据德摩根定律,下列等式正确的是()

A.all of these全部都是 B.(AB)’=A’+B’ C.(XYZ)’=X’+Y’+Z’ D.(A+B+C)’=A’B’C’

时间:2024-02-11 15:32:47

相似题目