题目内容
(请给出正确答案)
[单选题]
题图为TTL逻辑门电路,试写出各逻辑门的输出Y1~Y8。请选择正确答案。
A.Y1=0, Y2=0, Y3=1, Y4=0, Y5=0, Y6=0, Y7=0, Y8=0
B.Y1=0, Y2=0, Y3=Hi-z, Y4=0, Y5=0, Y6=0, Y7=0, Y8=0
C.Y1=0, Y2=0, Y3=1, Y4=0, Y5=0, Y6=0, Y7=0, Y8=1
D.Y1=1, Y2=0, Y3=1, Y4=0, Y5=0, Y6=0, Y7=0, Y8=1
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