题目内容

Before you think about asking for a promotion, make sure that either a position opening exists a new position is needed to be created.

A.and
B.nor
C.or
D. but

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The traffic was making so much noise that I couldn’t hear what he .

A.is saying
B.was saying
C.has said
D. will say

一个触发器可以储存( )位二进制数。

A. 4
B. 3
C. 2
D. 1

n位二进制加法计数器有( )个状态,最大计数值是( )。

A. n, n
B. n, 2n
C. 2n, 2n
D. 2n, 2n-1

在第7题图中,FF2触发器的J2= ( ),K2= ( )

A. J2= Q1Q0, K2= 1
B. J2= Q1Q0, K2= Q1
C. J2= 1,K2= 1
D. J2= 0, K2= 0