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<TD width="24%">(4)虚拟</TD></TR></TBODY></TABLE></DIV><BR>试题6 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">采用计算机多媒体技术的主要目的是__A__。数据压缩技术是多媒体信息处理中的关键技术之一，其目的是__B__。对数据压缩比要求最高的是__C__，最低的是__D__。目前对动态图象的压缩比__般在__E__。<BR>供选择的答案<BR><DIV align=right><TABLE width="92%" border=0> <TBODY> <TR> <TD width="52%" colSpan=2>A：(1)扩大计算机的存储空间</TD> <TD width="48%" colSpan=2>(2)提高计算机的运算速度 </TD></TR> <TR> <TD width="52%" colSpan=2>(3)缩短信息的传输时间</TD> <TD width="48%" colSpan=2>(4)增强计算机的处理功能 </TD></TR> <TR> <TD width="52%" colSpan=2>B：(1)减少存储空间，提高运算速度</TD> <TD width="48%" colSpan=2>(2)减少存储空间，缩短传输时间 </TD></TR> <TR> <TD width="52%" colSpan=2>(3)提高运算速度，缩短传输时间</TD> <TD width="48%" colSpan=2>(4)提高运算速度，增强安全可靠 </TD></TR> <TR> <TD width="28%">C：(1)文本文件</TD> <TD width="24%">(2)语音</TD> <TD width="24%">(3)图片</TD> <TD width="24%">(4)视频信号</TD></TR> <TR> <TD width="28%">D：(1)文本文件</TD> <TD width="24%">(2)语音</TD> <TD width="24%">(3)图片</TD> <TD width="24%">(4)视频信号</TD></TR> <TR> <TD width="28%">E：(1) 1000左右</TD> <TD width="24%">(2) 200～500</TD> <TD width="24%">(3) 20～200</TD> <TD width="24%">(4) 20以下</TD></TR></TBODY></TABLE></DIV><BR>试题7 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">用十六位机器码 1110001010000000 来表示定点整数(最高位为符号位)，当它是原码时表示的十进制真值为__A__。；当它是补码时表示的十进制真值是__B__；当它是反码时表示的十进制真值是__C__。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">已知字母“G”的 ASCII 码，在其高位前再加上l位奇偶校验位后的机器码是01000111，则“L”和“M”的 8 位机器码分别为__D__和__E__。<BR>供选择的答案<BR><DIV align=right><TABLE width="92%" border=0> <TBODY> <TR> <TD width="28%">A～C：(1) -12608</TD> <TD width="24%">(2) -7551</TD> <TD width="24%">(3) -7552 </TD> <TD width="24%">(4) -25216 </TD></TR> <TR> <TD width="28%">D、E：(1) 11001100</TD> <TD width="24%">(2) 11001101</TD> <TD width="24%">(3) 01001101</TD> <TD width="24%">(4) 01001100</TD></TR> <TR> <TD width="28%"></TD> <TD width="24%"></TD> <TD width="24%"></TD> <TD width="24%"></TD></TR> <TR> <TD width="28%"></TD> <TD width="24%"></TD> <TD width="24%"></TD> <TD width="24%"></TD></TR> <TR> <TD width="28%"></TD> <TD width="24%"></TD> <TD width="24%"></TD> <TD width="24%"></TD></TR></TBODY></TABLE></DIV><BR>试题8 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">以下均为逻辑恒等式</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px"><U> </U></P><P style="MARGIN-TOP: 3px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">x y + <SPAN style="TEXT-DECORATION: overline">x</SPAN> <SPAN style="TEXT-DECORATION: overline">y</SPAN> = __A__ 。</P><P style="MARGIN-TOP: 3px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">x (y + <SPAN style="TEXT-DECORATION: overline">x</SPAN>) = __B__ 。</P><P style="MARGIN-TOP: 3px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px"><SPAN style="TEXT-DECORATION: overline">y</SPAN> + x y = __C__ 。</P><P style="MARGIN-TOP: 3px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px"><SPAN style="TEXT-DECORATION: overline">x</SPAN> <SPAN style="TEXT-DECORATION: overline">y</SPAN> <SPAN style="TEXT-DECORATION: overline">z</SPAN> + <SPAN style="TEXT-DECORATION: overline">x</SPAN> <SPAN style="TEXT-DECORATION: overline">y</SPAN> z + <SPAN style="TEXT-DECORATION: overline">x</SPAN> y z + x <SPAN style="TEXT-DECORATION: overline">y</SPAN> <SPAN style="TEXT-DECORATION: overline">z</SPAN> + x <SPAN style="TEXT-DECORATION: overline">y</SPAN> z + x y z = __D__ 。</P><P style="MARGIN-TOP: 3px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px"><SPAN style="TEXT-DECORATION: overline">x</SPAN> <SPAN style="TEXT-DECORATION: overline">y</SPAN> <SPAN style="TEXT-DECORATION: overline">z</SPAN> + <SPAN style="TEXT-DECORATION: overline">x</SPAN> <SPAN style="TEXT-DECORATION: overline">y</SPAN> z + <SPAN style="TEXT-DECORATION: overline">x</SPAN> y <SPAN style="TEXT-DECORATION: overline">z</SPAN> + x <SPAN style="TEXT-DECORATION: overline">y</SPAN> <SPAN style="TEXT-DECORATION: overline">z</SPAN> + x <SPAN style="TEXT-DECORATION: overline">y</SPAN> z + x y <SPAN style="TEXT-DECORATION: overline">z</SPAN> = __E__ 。<BR>供选择的答案<BR><DIV align=right><TABLE width="92%" border=0> <TBODY> <TR> <TD width="28%">A: (1) x⊕y </TD> <TD width="24%">(2) <SPAN style="TEXT-DECORATION: overline">x⊕y</SPAN></TD> <TD width="24%">(3) x⊕<SPAN style="TEXT-DECORATION: overline">y </SPAN> </TD> <TD width="24%">(4) <SPAN style="TEXT-DECORATION: overline">x</SPAN>⊕y </TD></TR> <TR> <TD width="28%">B: (1) x + <SPAN style="TEXT-DECORATION: overline">y</SPAN></TD> <TD width="24%">(2) <SPAN style="TEXT-DECORATION: overline">x y</SPAN> </TD> <TD width="24%">(3) x y</TD> <TD width="24%">(4) y x + <SPAN style="TEXT-DECORATION: overline">y</SPAN></TD></TR> <TR> <TD width="28%"> <U> </U></TD> <TD width="24%"></TD> <TD width="24%"></TD> <TD width="24%"></TD></TR> <TR> <TD width="28%">C: (1) <SPAN style="TEXT-DECORATION: overline">x</SPAN> + <SPAN style="TEXT-DECORATION: overline">y</SPAN></TD> <TD width="24%">(2) ( <SPAN style="TEXT-DECORATION: overline">x</SPAN> + y) x</TD> <TD width="24%">(3) x y</TD> <TD width="24%">(4) x + <SPAN style="TEXT-DECORATION: overline">y</SPAN></TD></TR> <TR> <TD width="28%"></TD> <TD width="24%"></TD> <TD width="24%"> <U> </U></TD> <TD width="24%"> <U> </U></TD></TR> <TR> <TD width="28%">D, E: (1) <SPAN style="TEXT-DECORATION: overline">x</SPAN> + <SPAN style="TEXT-DECORATION: overline">z</SPAN></TD> <TD width="24%">(2) <SPAN style="TEXT-DECORATION: overline">y</SPAN> + <SPAN style="TEXT-DECORATION: overline">z</SPAN></TD> <TD width="24%">(3) <SPAN style="TEXT-DECORATION: overline">x</SPAN> y</TD> <TD width="24%">(4) y <SPAN style="TEXT-DECORATION: overline">z</SPAN></TD></TR></TBODY></TABLE></DIV><BR>试题9 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号 写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">目前计算机的内存大都采用__A__，它的特点是__B__。计算机中存放当前指令地址的寄存器称为__C__，在顺序执行程序时，当指令长度为32位，存储器按字节编址，每执行一条指令该寄存器自动加__D__。在数据传输过程中经常增加一位来检验传送的正确性，该位称为__E__位。<BR>供选择的答案<BR><DIV align=right><TABLE width="101%" border=0> <TBODY> <TR> <TD width="25%">A：(1) SRAM</TD> <TD width="23%">(2) DRAM</TD> <TD width="27%">(3) FM(flash memory) </TD> <TD width="25%">(4) EEPROM </TD></TR> <TR> <TD width="100%" colSpan=4>B：(1)初始加电时，其内容为0，以后只要加有电源，则写入的内容就能一直保持不变。</TD></TR> <TR> <TD width="100%" colSpan=4>(2)初始加电时，其内容不确定，以后只要加有电源，则写入的内容就能一直保持不变。</TD></TR> <TR> <TD width="100%" colSpan=4>(3)初始加电时，其内容为0，以后即使加有电源，还不足以保证写入的内容，一直保持不变。</TD></TR> <TR> <TD width="100%" colSpan=4>(4)初始加电时，其内容不确定，以后即使加有电源，还不足以保证写入的内容一直保持不变。</TD></TR> <TR> <TD width="25%">C：(1)程序计数器</TD> <TD width="23%">(2)指令寄存器</TD> <TD width="27%">(3)地址寄存器</TD> <TD width="25%">(4)栈地址寄存器</TD></TR> <TR> <TD width="25%">D：(1) 1</TD> <TD width="23%">(2) 2</TD> <TD width="27%">(3) 4</TD> <TD width="25%">(4) 8</TD></TR> <TR> <TD width="25%">E：(1)诊断</TD> <TD width="23%">(2)海明校验</TD> <TD width="27%">(3)奇偶校验</TD> <TD width="25%">(4)循环冗余校验(CRC)</TD></TR></TBODY></TABLE></DIV><BR>试题10 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">在多媒体计算机中，语音和音乐是最基本的功能之一。实现模拟音频数字化的主要过程是 __A__ ，量化和编码。人们通常用 8 位声卡或 16 位声卡来区分不同的声卡质量。若量化位是 8 位，并规定输入信号幅度为 0-3 V，则每一量化单位约对应 __B__ mv 。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">声卡需使用计算机的资源，因此在安装声卡时要分配适当的 __C__，__D__和直接存取通道号。声卡上的 line-in 插口是用来连接 __E__ 的。<BR>供选择的答案<BR><DIV align=right><TABLE width="92%" border=0> <TBODY> <TR> <TD width="28%">A：(1)放大</TD> <TD width="22%">(2)调制</TD> <TD width="23%">(3)采样 </TD> <TD width="27%">(4)解码 </TD></TR> <TR> <TD width="28%">B：(1) 3</TD> <TD width="22%">(2)12</TD> <TD width="23%">(3)375</TD> <TD width="27%">(4)1000</TD></TR> <TR> <TD width="28%">C：(1)串口号</TD> <TD width="22%">(2)并口号</TD> <TD width="23%">(3)I/O寄存器编号</TD> <TD width="27%">(4)中断请求号</TD></TR> <TR> <TD width="28%">D：(1)输入/输出地址</TD> <TD width="22%">(2)IP地址</TD> <TD width="23%">(3)内存地址</TD> <TD width="27%">(4)栈地址</TD></TR> <TR> <TD width="28%">E：(1)话筒</TD> <TD width="22%">(2)耳机</TD> <TD width="23%">(3)CD放声机</TD> <TD width="27%">(4)电子合成器(MIDl)</TD></TR></TBODY></TABLE></DIV><BR>试题11 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号<BR>写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">The __A__ of any computer system is the __B__ processing unit (CPU). There are three main Sections found in the CPU of a __C__ personal computer system: The primary cache section, the arithmetic-logic section, and the __D__ section. But these three sections aren't __E__ to personal computer: they are found in CPUs of all sizes.<BR>供选择的答案<BR><DIV align=right><TABLE width="92%" border=0> <TBODY> <TR> <TD width="28%">A: (1) hear</TD> <TD width="24%">(2) heard</TD> <TD width="24%">(3) heart </TD> <TD width="24%">(4) heat </TD></TR> <TR> <TD width="28%">B: (1) center</TD> <TD width="24%">(2) central</TD> <TD width="24%">(3) external</TD> <TD width="24%">(4) internal</TD></TR> <TR> <TD width="28%">C: (1) big</TD> <TD width="24%">(2) small</TD> <TD width="24%">(3) middle</TD> <TD width="24%">(4) typical</TD></TR> <TR> <TD width="28%">D: (1) control</TD> <TD width="24%">(2) input</TD> <TD width="24%">(3) memory</TD> <TD width="24%">(4) output</TD></TR> <TR> <TD width="28%">E: (1) different</TD> <TD width="24%">(2) easy</TD> <TD width="24%">(3) simple</TD> <TD width="24%">(4) unique</TD></TR></TBODY></TABLE></DIV><BR>试题12 <P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">从供选择的答案中，选出应填人下面叙述中__?__内的最确切的解答，把相应编号<BR>写在答卷的对应栏内。</P><P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 36px">The control unit is the __A__ unit that is responsible for __B__ the operation of the __C__ computer system. In some ways, it is __D__ to a telephone switch-board with intelligence because it makes the connections between various __A__ units of the computer system and calls into operation each unit that is __E__ by the program currently in operation.<BR>供选择的答案</P><DIV align=right><TABLE width="92%" border=0> <TBODY> <TR> <TD width="28%">A: (1) data</TD> <TD width="24%">(2) functional</TD> <TD width="24%">(3) logic </TD> <TD width="24%">(4) logical </TD></TR> <TR> <TD width="28%">B: (1) supervise</TD> <TD width="24%">(2) supervised</TD> <TD width="24%">(3) supervises</TD> <TD width="24%">(4) supervising</TD></TR> <TR> <TD width="28%">C: (1) enter</TD> <TD width="24%">(2) entire</TD> <TD width="24%">(3) entity</TD> <TD width="24%">(4) entry</TD></TR> <TR> <TD width="28%">D: (1) analog</TD> <TD width="24%">(2) analogous</TD> <TD width="24%">(3) analysis</TD> <TD width="24%">(4) analyze</TD></TR> <TR> <TD width="28%">E: (1) require</TD> <TD width="24%">(2) required</TD> <TD width="24%">(3) requirement</TD> <TD width="24%">(4) requiring</TD></TR></TBODY></TABLE></DIV><P align=center> </P><META http-equiv=Content-Type content="text/html; charset=gb2312"><META content="MSHTML 5.50.4916.2300" name=GENERATOR><META content=FrontPage.Editor.Document name=ProgId><!-- #EndEditable --> <p> </p> <p align="right"><font color="#000000">【<a href="http://emailpage.activepower.net/model/send.asp?emailpage_id=10887" target="_blank">把本页推荐给朋友</a>】【<a href="javascript:window.close()">关闭窗口</a>】</font><br> </p> <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#CCCCCC"> <tr> <td width="499" height="8"></td> </tr> </table> <div align="center"><br> 版权所有©llamaa</div> </td> <td width="10" rowspan="3" valign="top"> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="10" height="250"></td> </tr> <tr> <td height="1"><img height="1" width="10" src="../../../spacer.gif"></td> </tr> </table> </td> </tr> <tr> <td height="13"></td> </tr> <tr> <td height="35"></td> <td></td> </tr></table></body><!-- #EndTemplate --></html>⌨️ 快捷键说明
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