成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">1、<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"">JNZ<span style="mso-spacerun:yes"> </span>REL</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">指令的寻址方式是（<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">34、<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"">单片机在同一优先级的中断<span class="GramE">源同时</span>申请中断时，<span lang="EN-US">CPU</span>首先响应（<span lang="EN-US"><span style="mso-spacerun:yes"> </span><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">20、<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</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman"">－<span lang="EN-US">51</span>的最小时序定时单位是（<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">19、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; font-family:黑体;mso-bidi-font-family:"Times New Roman"">定时器<span class="GramE">若工</span>作在循环定时或循环计数场合，应选用<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">28、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; font-family:黑体;mso-bidi-font-family:"Times New Roman"">关于<span lang="EN-US">MCS-51</span>的堆栈操作<span lang="EN-US">,</span>正确的说法是<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 [判断] <p class="MsoNormal">1、<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"">RC<span style="mso-spacerun:yes"> </span>A</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">为循环左移指令。</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">34、<span style="mso-bookmark:_Hlk59749210"><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">MOV<span style="mso-spacerun:yes"> </span>A</span></span><span style="mso-bookmark: _Hlk59749210"><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">，<span lang="EN-US">30H<span style="mso-tab-count:1"> </span></span>这条指令是否正确？</span></span><span style="mso-bookmark:_Hlk59749210"><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></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">7、<span style="mso-bookmark:_Hlk59749210"><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">堆栈的特性是先出后进，<span lang="EN-US">8051</span>的堆栈一般开辟在</span></span><span style="mso-bookmark:_Hlk59749210"><span style="mso-bidi-font-size:10.5pt;font-family:黑体;color:black;mso-themecolor: text1">内部<span lang="EN-US">RAM30H~7FH</span>的范围内</span></span><span style="mso-bookmark:_Hlk59749210"><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">，其堆栈指针是<span lang="EN-US">SP</span>。</span></span><span style="mso-bookmark:_Hlk59749210"><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></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">1、<span style="mso-bookmark:_Hlk59749210"><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman"">中断处理的全过程分为以下<span lang="EN-US">3</span>个段：中断请求、中断响应、中断服务。</span></span><span style="mso-bookmark:_Hlk59749210"><span style="font-family:黑体;mso-bidi-font-family: "Times New Roman""> <span lang="EN-US"> <o:p></o:p></span></span></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">39、<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"">口通常用作高<span lang="EN-US">8</span>位地址线，也可以作通用的<span lang="EN-US">I/O</span>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>