题目内容

四个输入的译码器，其输出端最多为（）个

A. 4
B. 8
C. 10
D. 16

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七段数码显示译码电路应有（）个输出端

A. 7
B. 8
C. 4
D. 16

共阳极的数码管输入信号的有效电平是电平，共阳极的数码管输入信号的有效电平是电平

Choose the best answer to each of the following questions according to Text A.The AI refers to the intelligence demonstrated _______________.

A. by humans
B. by Internet
C. by environment
D. by machines

In what way can you enter scenic spots without a paper ticket?

Asking a friend for help.
B. Slipping into the spot.
C. Having your fingerprint read.
Drawing a ticket.