4选1数据选择器的输出表达式Y=A1′A0′D0+A1′A0D1+A1A0′D2+A1A0D3,若用该数据选择器实现Y=A1′,则D0~D3的取值为()。 A: D=D=1,D=D=0 B: D=D=0,D=D=1 C: D=D=D=D=1
4选1数据选择器的输出表达式Y=A1′A0′D0+A1′A0D1+A1A0′D2+A1A0D3,若用该数据选择器实现Y=A1′,则D0~D3的取值为()。 A: D=D=1,D=D=0 B: D=D=0,D=D=1 C: D=D=D=D=1
四选一数据选择器的输出表达式Y=A1′A0′D0+A1′A0D1+A1A0′D2+A1A0D3,若用该数据选择器实现Y=A1′,则D0~D3的取值为( )。 A: D0 =D1=1,D2=D3=0 B: D0 =D3=0,D1=D2=1 C: D0=D1=D2=D3=1 D: D0=D1=D2=D3=0
四选一数据选择器的输出表达式Y=A1′A0′D0+A1′A0D1+A1A0′D2+A1A0D3,若用该数据选择器实现Y=A1′,则D0~D3的取值为( )。 A: D0 =D1=1,D2=D3=0 B: D0 =D3=0,D1=D2=1 C: D0=D1=D2=D3=1 D: D0=D1=D2=D3=0
以下HDB3码中,哪些可以确定其中有误码 A: +1 0 0 0 -1 0 +1 -1 +1 0 0 +1 0 -1 +1 -1 0 0 -1 +1…… B: +1 0 0 -1 +1 0 0 0 +1 -1 0 0 -1 0 0 0 +1 0 0 +1 -1…… C: -1 0 0 0 -1 0 +1 0 0 0 +1 -1 +1 0 0 +1 0 0 -1 +1…… D: -1 0 +1 0 0 0 -1 +1 0 0 0 +1 -1 +1 -1 0 0 -1 +1 0 -1……
以下HDB3码中,哪些可以确定其中有误码 A: +1 0 0 0 -1 0 +1 -1 +1 0 0 +1 0 -1 +1 -1 0 0 -1 +1…… B: +1 0 0 -1 +1 0 0 0 +1 -1 0 0 -1 0 0 0 +1 0 0 +1 -1…… C: -1 0 0 0 -1 0 +1 0 0 0 +1 -1 +1 0 0 +1 0 0 -1 +1…… D: -1 0 +1 0 0 0 -1 +1 0 0 0 +1 -1 +1 -1 0 0 -1 +1 0 -1……
对HDB3码-1000+100-1000-1+1000+1-1+1-100-1+1-1进行译码,结果是( )。 A: 1 0 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 1 1 B: 1 0 0 0 1 0 0 1 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 1 C: 1 0 1 0 1 0 0 1 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 1 1 D: 1 0 0 0 1 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 1
对HDB3码-1000+100-1000-1+1000+1-1+1-100-1+1-1进行译码,结果是( )。 A: 1 0 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 1 1 B: 1 0 0 0 1 0 0 1 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 1 C: 1 0 1 0 1 0 0 1 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 1 1 D: 1 0 0 0 1 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 1
1⊙1⊙1⊙1⊙0⊙0⊙0⊙0等于?() A: 0⊙0⊙0⊙1 B: 1⊕1⊕1⊕1 C: 1⊙0⊙0⊙1 D: 1⊕1⊙0⊙0
1⊙1⊙1⊙1⊙0⊙0⊙0⊙0等于?() A: 0⊙0⊙0⊙1 B: 1⊕1⊕1⊕1 C: 1⊙0⊙0⊙1 D: 1⊕1⊙0⊙0
对信码1000100100001000011000011进行HDB3编码,结果可能是( )。 A: -1 0 0 0 +1 0 0 -1 0 0 0 -V +1 0 0 0 +V -1 +1 -B 0 0 -V +1 -1 B: +1 0 0 0 -1 0 0 +1 0 0 0 +V -1 0 0 0 -V +1 -1 +B 0 0 +V -1 +1 C: +1 0 0 0 -1 0 0 +1 0 0 0 +1 -1 0 0 0 -1 +1 -1 +1 0 0 +1 -1 +1 D: -1 0 0 0 +1 0 0 -1 0 0 0 +V +1 0 0 0 +V -1 +1 +B 0 0 -V +1 -1
对信码1000100100001000011000011进行HDB3编码,结果可能是( )。 A: -1 0 0 0 +1 0 0 -1 0 0 0 -V +1 0 0 0 +V -1 +1 -B 0 0 -V +1 -1 B: +1 0 0 0 -1 0 0 +1 0 0 0 +V -1 0 0 0 -V +1 -1 +B 0 0 +V -1 +1 C: +1 0 0 0 -1 0 0 +1 0 0 0 +1 -1 0 0 0 -1 +1 -1 +1 0 0 +1 -1 +1 D: -1 0 0 0 +1 0 0 -1 0 0 0 +V +1 0 0 0 +V -1 +1 +B 0 0 -V +1 -1
编写程序,创建下列10*10的数组,数组边界全为1,里面全为0。 [[1 1 1 1 1 1 1 1 1 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 1 1 1 1 1 1 1 1 1]]
编写程序,创建下列10*10的数组,数组边界全为1,里面全为0。 [[1 1 1 1 1 1 1 1 1 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 1 1 1 1 1 1 1 1 1]]
若逻辑表达式,则A、B、C、D分别为()。 A: 1、0、0、0 B: 0、1、0、0 C: 0、1、1、0 D: 1、0、1、1
若逻辑表达式,则A、B、C、D分别为()。 A: 1、0、0、0 B: 0、1、0、0 C: 0、1、1、0 D: 1、0、1、1
在MATLAB中,A = 1:9,现在执行如下指令L1 = ~(A>;5),则MATLAB的执行结果应该是L1 =() A: 0 0 0 0 0 1 1 1 1 B: 1 1 1 1 1 0 0 0 0 C: 1 1 1 1 1 1 0 0 0 D: 0 0 0 0 0 0 1 1 1
在MATLAB中,A = 1:9,现在执行如下指令L1 = ~(A>;5),则MATLAB的执行结果应该是L1 =() A: 0 0 0 0 0 1 1 1 1 B: 1 1 1 1 1 0 0 0 0 C: 1 1 1 1 1 1 0 0 0 D: 0 0 0 0 0 0 1 1 1
编写程序,创建下列10*10的数组,数组边界全为1,里面全为0。 [[1 1 1 1 1 1 1 1 1 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 1 1 1 1 1 1 1 1 1]] 提示:可以先创建全为0或者全为1的数组,再通过索引和切片机制进行修改
编写程序,创建下列10*10的数组,数组边界全为1,里面全为0。 [[1 1 1 1 1 1 1 1 1 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 0 0 0 0 0 0 0 0 1] [1 1 1 1 1 1 1 1 1 1]] 提示:可以先创建全为0或者全为1的数组,再通过索引和切片机制进行修改