举一反三
- If any input to an OR is 1, the output is 1 A: 正确 B: 错误
- If any input to an OR gate is zero, the output is zero.
- A process of learning any language consists of output and input skills. Which following word is the part of output?
- If any input to an OR gate is zero, the output is zero. A: 正确 B: 错误
- 如果从数据文件 c:\data.txt 中读取数据时,以下打开文件方式中,正确的是( ). A: Open c:\data.txt For Input As B: 1 C: Open c:\data.txt For Output As D: 1 E: Open "c:\data.txt" For Input As F: 1 G: Open "c:\data.txt" For Output As H: 1
内容
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为了读取数据，需打开顺序文件“D:\data5.txt”，以下正确的命令是 A: Open D:\data5.txt For Input As #1 B: Open "D:\data5.txt"For Input As #2 C: Open D:\data5.txt For Output As #1 D: Open "D:\data5.txt"For Output As #2
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下面是四选一数据选择器的部分代码，要补全代码可以选择（ ）。（？）always@(*)begin if (s==2'b00) y=p0; else if (s==2'b01) y=p1; else if (s==2'b10) y=p2; else y=p3;end A: module mux4_1 (p3,p2,p1,p0,s,y);input p3,p2,p1,p0;input[1:0] s;output y;... ...endmodule B: module mux4_1 (p3,p2,p1,p0,s,y);input p3,p2,p1,p0;input[1:0] s;output y;reg y;... ...endmodule C: module mux4_1 ( input p3,p2,p1,p0; input[1:0] s; output reg y;）... ...endmodule D: module mux4_1 (input p3,p2,p1,p0;input[1:0] s;output y )... ...endmodule
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C language has no input/output statement, just input/output functions instead.
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Which of the following will result in an increase in productivity A: 10% decrease in both output and input B: 10% increase in output and 5% increase in input C: 5% increase in output and 10% increase in input D: 10% increase in both output and input
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下列程序的功能是：将数据1，2，…，8写入顺序文件Num.txt中，请选择正确的程序段( )。 Private Sub Form_Click() Dim i As Integer Open "Num.txt" For Output As #1 For i=1 To 8 ______ Next i Close #1 End Sub A: print #1,i B: input #1,i C: print #1 D: input #1