[单选题]芯片8255A的端口B工作在方式1输出时,为了能利用INTRB信号向外发中断信号,下列正确的置位/复位控制字是
正确答案 :A
05H
[多选题]我们经常使用的压缩软件是______。
正确答案 :C
WinRAR
解析:答案:C
[单选题]N-S diagram can used to substitute conventional program flow Chart.In the following phrases,Which does not belong to the basic control structures that contain?
正确答案 :D
execution structure
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