成考院校在线答案
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2022-09-12
[单选] <p class="MsoNormal" align="left" style="text-align:left">39、<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:Calibri;mso-hansi-font-family: Calibri;mso-bidi-font-family:"Times New Roman"">下面是一段汇编语言源程序</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Calibri",sans-serif; mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman"">,</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:Calibri; mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman"">请指出程序运行后的结果是</span><span style="font-size:12.0pt;font-family:"Calibri",sans-serif;mso-fareast-font-family: 宋体;mso-bidi-font-family:"Times New Roman""> <u><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></u></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:Calibri; mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New Roman"">。</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Calibri",sans-serif; mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman""> <o:p></o:p></span></p> <p class="MsoNormal" align="left" style="margin-left:63.0pt;text-align:left; text-indent:21.0pt"><span lang="EN-US" style="font-size:12.0pt;font-family: "Calibri",sans-serif;mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman"">MOV<span style="mso-tab-count:2"> </span>A,<span style="mso-tab-count: 1"> </span>#56H <o:p></o:p></span></p> <p class="MsoNormal" align="left" style="margin-left:63.0pt;text-align:left; text-indent:21.0pt"><span lang="EN-US" style="font-size:12.0pt;font-family: "Calibri",sans-serif;mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman"">MOV<span style="mso-tab-count:2"> </span>B,<span style="mso-tab-count: 1"> </span>#17H <o:p></o:p></span></p> <p class="MsoNormal" align="left" style="margin-left:63.0pt;text-align:left; text-indent:21.0pt"><span lang="EN-US" style="font-size:12.0pt;font-family: "Calibri",sans-serif;mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman"">ADD<span style="mso-tab-count:2"> </span>A,<span style="mso-tab-count: 1"> </span>B <o:p></o:p></span></p> <p class="MsoNormal" align="left" style="margin-left:63.0pt;text-align:left; text-indent:21.0pt"><span lang="EN-US" style="font-size:12.0pt;font-family: "Calibri",sans-serif;mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman"">DA<span style="mso-tab-count:3"> </span>A <o:p></o:p></span></p> <p class="MsoNormal" align="left" style="margin-left:63.0pt;text-align:left; text-indent:21.0pt"><span lang="EN-US" style="font-size:12.0pt;font-family: "Calibri",sans-serif;mso-fareast-font-family:Microsoft Yahei;mso-bidi-font-family:"Times New Roman"">SJMP<span style="mso-tab-count:2"> </span>$ <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">38、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">8051</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">单片机的中断系统中，中断服务子程序的最后一条指令必须是</span><u><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast"> <b><span style="mso-spacerun:yes"> </span></b><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span></u><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family: "Times New Roman",serif;mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">33、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">计算机是由运算器、控制器、存储器、输入接口和输出接口这五大部分通过三总线连接而成的，而下列选项中有四个总线，其中不属于三总线的是</span><u><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family: 宋体;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast"><span style="mso-spacerun:yes"> </span></span></u><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family: "Times New Roman",serif;mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="line-height:150%">3、<span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;line-height:150%;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">计算机中常用的编码有</span><span lang="EN-US" style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;line-height:150%;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">BCD</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;line-height:150%;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">码、</span><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;line-height:150%;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">ASCΙΙ</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;line-height:150%;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">码、汉字内码，其中</span><span lang="EN-US" style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;line-height:150%;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">ASCΙΙ</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;line-height:150%;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">码是美国标准信息交换码，它是用</span><u><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;line-height:150%; font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast"><span style="mso-spacerun:yes"> </span><b><span style="mso-spacerun:yes"> </span></b><span style="mso-spacerun:yes"> </span></span></u><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;line-height:150%;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">位二进制数表示一个符号。</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;line-height:150%; font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:等线;mso-hansi-theme-font:minor-latin"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">17、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">下面是一段汇编语言源程序</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">,</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">请指出程序运行后的结果是</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast"> <u><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></u></span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">。</span><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast"> <o:p></o:p></span></p> <p class="MsoNormal" style="text-indent:42.0pt;mso-char-indent-count:3.5; mso-pagination:widow-orphan"><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">MOV<span style="mso-tab-count:2"> </span>23H,<span style="mso-tab-count:1"> </span>#0AH <o:p></o:p></span></p> <p class="MsoNormal" style="text-indent:42.0pt;mso-char-indent-count:3.5; mso-pagination:widow-orphan"><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">CLR<span style="mso-tab-count:3"> </span>A <o:p></o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">LOOP:<span style="mso-tab-count: 1"> </span>ADD<span style="mso-tab-count:2"> </span>A,<span style="mso-tab-count:2"> </span>23H <o:p></o:p></span></p> <p class="MsoNormal" style="text-indent:42.0pt;mso-char-indent-count:3.5; mso-pagination:widow-orphan"><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">DJNZ<span style="mso-tab-count:2"> </span>23H,<span style="mso-tab-count:1"> </span>LOOP <o:p></o:p></span></p> <p class="MsoNormal" style="text-indent:42.0pt;mso-char-indent-count:3.5; mso-pagination:widow-orphan"><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">SJMP<span style="mso-tab-count:2"> </span>$ <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">25、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">当使用</span><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">6MHz</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">石英振荡晶体时，用</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">8051</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">单片机的定时计数器工作方式</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">2</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">进行</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">500us</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">的定时，则其计数器的初始值</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">X=<u><span style="mso-spacerun:yes"> </span></u></span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family: "Times New Roman",serif;mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">23、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">8051</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">单片机的并行</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">I/O</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">接口中，具有三态</span><span lang="EN-US" style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">I/O</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">能力的接口是</span><u><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast"><span style="mso-spacerun:yes"> </span></span></u><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family: "Times New Roman",serif;mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">39、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">8051</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">单片机的定时</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">/</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">计数器是由</span><u><span lang="EN-US" style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast"><span style="mso-spacerun:yes"> </span></span></u><span class="GramE"><span style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family:宋体">个</span></span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family: 宋体;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">8</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">位特殊功能寄存器组成的。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Times New Roman",serif; mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">36、<span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">在复位时，</span><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast">8051</span><span style="font-size:12.0pt; mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">单片机的并行</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">I/O</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">接口引脚均为</span><u><span lang="EN-US" style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast"><span style="mso-spacerun:yes"> </span></span></u><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family:宋体">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Times New Roman",serif; mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">24、<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family: 等线;mso-fareast-theme-font:minor-fareast">MCS-51</span><span style="font-size: 12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family: 宋体">系列单片机是</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size: 11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">1978</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">年由</span><u><span lang="EN-US" style="font-size:12.0pt; mso-bidi-font-size:11.0pt;font-family:Microsoft Yahei;mso-fareast-font-family:等线; mso-fareast-theme-font:minor-fareast"><span style="mso-spacerun:yes"> </span></span></u><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt; mso-ascii-font-family:Microsoft Yahei;mso-hansi-font-family:宋体">推出的高性能</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:11.0pt;font-family: 宋体;mso-fareast-font-family:等线;mso-fareast-theme-font:minor-fareast">8</span><span style="font-size:12.0pt;mso-bidi-font-size:11.0pt;mso-ascii-font-family:Microsoft Yahei; mso-hansi-font-family:宋体">位单片机，其衍生产品至今仍广泛应用于日用家电产品中。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Times New Roman",serif; mso-fareast-font-family:Microsoft Yahei;mso-font-kerning:0pt"> <o:p></o:p></span></p>
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