200204.htm

等级考试三级试题全集

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(16)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>用直接插入排序方法对下列四个表由小到大进行排序，比较次数最少的是：<span lang=EN-US><o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）（94，32，40，90，80，46，21，69）</span></p>

<p class=a2><span lang=EN-US>B）（21，32，46，40，80，69，90，94）</span></p>

<p class=a2><span lang=EN-US>C）（32，40，21，46，69，94，90，80）</span></p>

<p class=a2><span lang=EN-US>D）（90，69，80，46，21，32，94，40）</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(17)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>微处理器通过接口从外部输入数据时，在输入端口中：<span lang=EN-US><o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）数据只需经反相器后就可读入<span
style='mso-spacerun:yes'>&nbsp;&nbsp; </span>B）数据只需经寄存器后就可读入 </span></p>

<p class=a2><span lang=EN-US>C）数据可以直接读入<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>D）数据需经三态缓冲器读入</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(18)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>当前<span lang=EN-US>PC机中的二级CACHE存储器是直接挂在：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）PCI总线上<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>B）ISA总线（AT总线）上</span></p>

<p class=a2><span lang=EN-US>C）CPU局部总线上<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='mso-tab-count:1'> </span>D）EISA总线上</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(19)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>现行<span lang=EN-US>PC 机中CPU向I/O端口写入个操作数时，有效的端口地址线最多需要几条？<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）4条<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>B）8条<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>C）10条<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp; </span>D）16条</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(20)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>假设某<span lang=EN-US>CPU的时钟周期为5ns，所访问的主存的存取周期为60ns，为了正确读出主存中的指令和数据，还需在总线周期中插入2个等待状态，则此CPU的总线周期应该为：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）10ns<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>B）20ns<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>C）40ns<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>D）50ns</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(21)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>现行的<span lang=EN-US>PC机中，IDE接口标准主要用于：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）打印机与主机的连接<span
style='mso-spacerun:yes'>&nbsp;&nbsp; </span><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>B）外挂MODEM与主机连接</span></p>

<p class=a2><span lang=EN-US>C）软盘与主机的连接<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）硬盘与主机的连接</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(22)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>某<span lang=EN-US>PC机上的控制卡，采用8255A作并行接口传输数据，如果定义其C口的口地址为03E4H，则其A口的口地址是：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）03E7H<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp; </span>B）03E6H<span style='mso-spacerun:yes'>&nbsp;&nbsp;
</span><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>C）03E3H<span
style='mso-spacerun:yes'>&nbsp;&nbsp; </span><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>D）03E2H</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(23)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>一个异步串行通讯电路，采用<span lang=EN-US>8251作为异步串行通讯接口，传输速率为1200波特，发送接收时钟76800HZ，则波特率系统数为：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）4<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>B）8<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>C）32<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）64</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(24)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>某显示器的分辩率为<span lang=EN-US>1024×768,像素位宽为16bit，带宽为105MB，则显示器的刷新频率为：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）60Hz<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>B）70Hz<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>C）80Hz<span
style='mso-spacerun:yes'>&nbsp; </span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;</span><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp; </span>D）85Hz</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(25)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>若定义<span lang=EN-US>DAT<span
style='mso-spacerun:yes'>&nbsp;&nbsp; </span>DD<span
style='mso-spacerun:yes'>&nbsp;&nbsp; </span>12345678H，则（DAT+1）字节单元中的数据是：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）12H<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>B）34H<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>C）56H<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>D）78H</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(26)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>下列哪一条指令是合法的：<span lang=EN-US><o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）OUTDX，AL<span
style='mso-spacerun:yes'>&nbsp;&nbsp; </span><span style='mso-tab-count:5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>B）MOVDS，1000H
</span></p>

<p class=a2><span lang=EN-US>C）XCHG<span style='mso-spacerun:yes'>&nbsp;&nbsp;
</span>[DI]，[SI]<span style='mso-spacerun:yes'>&nbsp; </span><span
style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）MULBL，</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(27)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>假设（<span lang=EN-US>AL）=12H，执行ORAL，AL指令后，ZF和OF的状态分别为：<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）1，1<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>B）1，0<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp; </span>C）0，1<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>D）0，0 </span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(28)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>若被连接的程序模块有相同的数据段定义，则这两个程序的数据段应选用下列哪一种组合类型最合理？<span
lang=EN-US> <o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）NONE<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>B）PUBLIC<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp; </span>C）CONNON<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp; </span>D）NENORY</span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(29)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>下列四个选项中，哪一个是宏汇编语言使用的运算符？<span lang=EN-US><o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）SHORT<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp; </span>B）NEAR<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
1'> </span>C）FAR<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）DWORD</span></p>

<p class=MsoNormal style='text-indent:30.0pt'><span lang=EN-US
style='font-family:宋体'><o:p>&nbsp;</o:p></span></p>

<p class=a1 style='margin-left:21.7pt;text-indent:-21.7pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(30)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-family:宋体'>下面是数据段的定义<span lang=EN-US><o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:37.2pt'><span lang=EN-US
style='font-family:宋体'>DSEG<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>SEGMENT<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:37.2pt'><span lang=EN-US
style='font-family:宋体'>A<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>DB<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>‘1234’<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:37.2pt'><span lang=EN-US
style='font-family:宋体'>B<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>DW<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>A<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:37.2pt'><span lang=EN-US
style='font-family:宋体'>DSEG<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>ENDS<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:37.2pt'><span style='font-family:宋体'>执行<span
lang=EN-US>MOV BX,B 4指令后，BX寄存器中内容是：<o:p></o:p></span></span></p>

<p class=MsoNormal style='text-indent:37.2pt'><span lang=EN-US
style='font-family:宋体'><o:p>&nbsp;</o:p></span></p>