成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">5、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">MCS-51</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman"">单片机的外部中断<span lang="EN-US">1</span>的中断请求标志是<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span>。</span><span lang="EN-US" style="font-family:黑体;mso-bidi-font-family:"Times New Roman""> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">14、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black;mso-themecolor: text1">外部扩展存储器时，分时复用做数据总线和低<span lang="EN-US">8</span>位地址线的是（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black; mso-themecolor:text1"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="font-family:黑体;mso-bidi-font-family: "Times New Roman";color:black;mso-themecolor:text1"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">39、<span lang="PT-BR" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black; mso-themecolor:text1;mso-ansi-language:PT-BR">ACALL<span style="mso-tab-count: 1"> </span>PROC</span><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"; color:black;mso-themecolor:text1"><span style="mso-tab-count:1"> </span></span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman";color:black;mso-themecolor:text1">这条指令是否正确？（<span lang="EN-US">PROC</span>为标号）</span><span lang="EN-US" style="font-family:黑体; mso-bidi-font-family:"Times New Roman";color:black;mso-themecolor:text1"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">30、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">8051</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman"">的堆栈区一般开辟在用户<span lang="EN-US">ROM</span>区。<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-family:黑体;mso-bidi-font-family: "Times New Roman""> <o:p> </o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">38、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">P2</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman"">口既可以作为<span lang="EN-US">I/O</span>使用，又可以作地址<span lang="EN-US">/</span>数据复用口使用。</span><span lang="EN-US" style="font-family:黑体; mso-bidi-font-family:"Times New Roman""> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">15、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; font-family:黑体;mso-bidi-font-family:"Times New Roman"">在中断服务程序中至少应有一条（ ）</span><span lang="EN-US" style="font-family:黑体;mso-bidi-font-family:"Times New Roman""> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">40、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; font-family:黑体;mso-bidi-font-family:"Times New Roman"">下列指令中不影响标志位<span lang="EN-US">CY</span>的指令有（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。</span><span lang="EN-US" style="font-family:黑体;mso-bidi-font-family:"Times New Roman""> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">10、<span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的</span><span lang="EN-US" style="font-size:12.0pt">I/O</span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">点数是指</span><span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">上输入、输出接线柱的数量。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">12、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">采用计数器或定时器编程可以消除开关量输入信号的抖动。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">1、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">子程序必须放在</span><span lang="EN-US" style="font-size:12.0pt">END</span><span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">指令之后。</span></p>