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  </td>
  <td width=94 style='width:70.5pt;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  style='font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:
  0pt'>中<span lang=EN-US> <o:p></o:p></span></span></p>
  </td>
  <td width=377 style='width:282.75pt;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
  lang=EN-US style='font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
  mso-font-kerning:0pt'>R1(20ms)→CPU(30ms) →R2(40ms) <o:p></o:p></span></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:3;mso-yfti-lastrow:yes'>
  <td width=54 style='width:40.5pt;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  lang=EN-US style='font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
  mso-font-kerning:0pt'>P3 <o:p></o:p></span></p>
  </td>
  <td width=94 style='width:70.5pt;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
  style='font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:
  0pt'>低<span lang=EN-US> <o:p></o:p></span></span></p>
  </td>
  <td width=377 style='width:282.75pt;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
  lang=EN-US style='font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
  mso-font-kerning:0pt'>CPU (40ms)→R1(10ms) <o:p></o:p></span></p>
  </td>
 </tr>
</table>

</div>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　假设操作系统的开销忽略不计，三个进程从投入运行到全部完成，<span
lang=EN-US>CPU</span>的利用率约为<span lang=EN-US>_____(26)____% </span>；<span
lang=EN-US>R2</span>的利用率约为<span lang=EN-US>_____(27)____% </span>（设备的利用率指该设备的使用时间与进程组全部完成所占用时间的比率）。<span
lang=EN-US><br>
</span>　　（<span lang=EN-US>26</span>）<span lang=EN-US>A</span>．<span
lang=EN-US>60</span><span class=GramE>　　　　　</span><span lang=EN-US>B.67</span><span
class=GramE>　　　　　</span><span lang=EN-US>C.78</span><span class=GramE>　　　　　</span><span
lang=EN-US>D.90<br>
</span>　　（<span lang=EN-US>27</span>）<span lang=EN-US>A</span>．<span
lang=EN-US>70</span><span class=GramE>　　　　　</span><span lang=EN-US>B.78</span><span
class=GramE>　　　　　</span><span lang=EN-US>C.80</span><span class=GramE>　　　　　</span><span
lang=EN-US>D.89<o:p></o:p></span></span></p>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　<span
lang=EN-US>● </span>某一确定性有限自动机（<span lang=EN-US>DFA</span>）的状态转换图如下图所示，令<span
lang=EN-US>d=0|1|2|…|9,</span>则以下字符串中，不能被该<span lang=EN-US>DFA</span>接受的是<span
lang=EN-US>_____(28)____</span>，与该<span lang=EN-US>DFA</span>等价的正规式是<span
lang=EN-US>_____(29)____</span>。（其中，<span lang=EN-US>ε</span>表示空字符）<span
lang=EN-US><SPAN lang=EN-US 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">(</SPAN><SPAN 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">欢迎访问软件考试网<SPAN 
lang=EN-US>www.hbsoft.net)</SPAN></SPAN><br>
</span>　　<span class=GramE>　　</span><span lang=EN-US>① 3875</span>　　<span
class=GramE>　</span><span lang=EN-US>② 1.2E+5</span>　　<span class=GramE>　</span><span
lang=EN-US>③ -123.</span>　　　<span lang=EN-US>④ .576E10<o:p></o:p></span></span></p>

<p class=MsoNormal align=center style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:center;mso-pagination:widow-orphan'><span lang=EN-US
style='font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:
0pt'><!--[if gte vml 1]><v:shape id="_x0000_i1027" type="#_x0000_t75" alt=""
 style='width:233.25pt;height:120pt'>
 <v:imagedata src="200501_rjsjs.files/image003.gif" o:href="http://www.chinatnk.com/netadmin/oldchild/jsjsj/spks/gc/gc05_1s1.gif"/>
</v:shape><![endif]--><![if !vml]><img width=311 height=160
src="200501_rjsjs.files/image003.gif" v:shapes="_x0000_i1027"><![endif]><o:p></o:p></span></p>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　（<span
lang=EN-US>28</span>）<span lang=EN-US>A</span>．<span lang=EN-US>①</span>、<span
lang=EN-US>②</span>、<span lang=EN-US>③</span>　　<span class=GramE>　</span><span
lang=EN-US>B. ①</span>、<span lang=EN-US>②</span>、<span lang=EN-US>④</span>　　<span
class=GramE>　</span><span lang=EN-US>C. ②</span>、<span lang=EN-US>③</span>、<span
lang=EN-US>④</span>　　<span lang=EN-US>D. ①</span>、<span lang=EN-US>②</span>、<span
lang=EN-US>③</span>、<span lang=EN-US>④<br>
</span>　　（<span lang=EN-US>29</span>）<span lang=EN-US>A</span>．（<span
lang=EN-US>-d|d</span>）<span lang=EN-US>d*E(-d|d)d*|(-d|d)d*.d*(ε|E(-d|d)d*)<br>
</span><span class=GramE>　　　　　</span><span lang=EN-US>B.-(d|d)dd*(.|ε)d*(ε|E(-d|d)d*)&nbsp;<br>
</span>　　　　　<span lang=EN-US>C.(-|d)dd*E(-|d)d*|(-d|d)dd*.d*(ε|E(-|E(-|d)d*)&nbsp;<br>
</span>　　　　　<span lang=EN-US>D.(-d|d)dd*E(-d|d)d*|(-d|d)dd*.d*(ε|E(-dd*|dd*))<o:p></o:p></span></span></p>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　<span
lang=EN-US>● </span>对于以下编号为<span lang=EN-US>①</span>、<span lang=EN-US>②</span>、<span
lang=EN-US>③</span>的正规式，正确的说法是<span lang=EN-US>_____(30)____</span>。<span
lang=EN-US><SPAN lang=EN-US 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">(</SPAN><SPAN 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">欢迎访问软件考试网<SPAN 
lang=EN-US>www.hbsoft.net)</SPAN></SPAN><br>
①(aa*|ab)*b ②(a|b)*b ③((a|b)* |aa)*b<br>
(30) A.</span>正规式<span lang=EN-US>①</span>、<span lang=EN-US>②</span>等价<span
lang=EN-US> B.</span>正规式<span lang=EN-US>①</span>、<span lang=EN-US>③</span>等价<span
lang=EN-US><br>
C. </span>正规式<span lang=EN-US>②</span>、<span lang=EN-US>③</span>等价<span
lang=EN-US> D.</span>正规式<span lang=EN-US>①</span>、<span lang=EN-US>②</span>、<span
lang=EN-US>③</span>互不等价<span lang=EN-US><o:p></o:p></span></span></p>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　<span
lang=EN-US>● </span>在<span lang=EN-US>UML</span>提供的图中，<span lang=EN-US>_____(31)____</span>用于描述系统与外部系统及用户之间的交互；<span
lang=EN-US>_____(32)____</span>用于按时间顺序描述对象间的交互。<span lang=EN-US><br>
(31) A.</span>用例图<span lang=EN-US> B.</span>类图<span lang=EN-US> C.</span>对象图<span
lang=EN-US> D.</span>部署图<span lang=EN-US><br>
(32) A.</span>网络图<span lang=EN-US> B.</span>状态图<span lang=EN-US> C.</span>协作图<span
lang=EN-US> D.</span>序列图<span lang=EN-US><o:p></o:p></span></span></p>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　<span
lang=EN-US>● </span>某数据库中有供应商关系<span lang=EN-US>S</span>和零件关系<span lang=EN-US>P</span>，其中：供应商关系模式<span
lang=EN-US>S</span>（<span lang=EN-US>Sno</span>，<span lang=EN-US>Sname</span>，<span
lang=EN-US>Szip</span>，<span lang=EN-US>City</span>）中的属性分别表示：供应商代码、供应商名、邮编、供应<span
class=GramE>商所在</span>城市；零件号、零件名、颜色、重量、产地。要求一个供应商可以供应多种零件，而一种零件可以由多个供应商供应。请将下面的<span
lang=EN-US>SQL</span>语句空缺部分补充完整。<span lang=EN-US><SPAN lang=EN-US 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">(</SPAN><SPAN 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">欢迎访问软件考试网<SPAN 
lang=EN-US>www.hbsoft.net)</SPAN></SPAN><br>
</span>　　　　　　<span lang=EN-US> CREATE TABLE SP</span>（<span lang=EN-US>Sno
CHAR(5),<br>
</span><span class=GramE>　　　　　　　　　　　　　</span><span lang=EN-US>Pno CHAR(6),<br>
</span><span class=GramE>　　　　　　　　　　　　　</span><span lang=EN-US>Status CHAR(8),<br>
</span><span class=GramE>　　　　　　　　　　　　　</span><span lang=EN-US>Qty NUMERIC(9),<br>
</span><span class=GramE>　　　　　　　　　　　　　</span><span lang=EN-US>_____(33)____
(Sno,Pno),<br>
</span><span class=GramE>　　　　　　　　　　　　　</span><span lang=EN-US>_____(34)____
(Sno),<br>
</span><span class=GramE>　　　　　　　　　　　　　</span><span lang=EN-US>_____(35)____
(Pno);<br>
</span>　　查询供应了<span lang=EN-US>&quot;</span>红<span lang=EN-US>&quot;</span>色零件的供应商号、零件号和数量（<span
lang=EN-US>Qty</span>）的元组演算表达式为：<span lang=EN-US><br>
</span>　　　<span lang=EN-US>{t|(<!--[if gte vml 1]><v:shape id="_x0000_i1028"
 type="#_x0000_t75" alt="" style='width:7.5pt;height:9pt'>
 <v:imagedata src="200501_rjsjs.files/image004.png" o:href="http://www.chinatnk.com/netadmin/oldchild/jsjsj/spks/gc/gc05_1s2.gif"/>
</v:shape><![endif]--><![if !vml]><img width=10 height=12
src="200501_rjsjs.files/image005.gif" v:shapes="_x0000_i1028"><![endif]>u)(<!--[if gte vml 1]><v:shape
 id="_x0000_i1029" type="#_x0000_t75" alt="" style='width:7.5pt;height:9pt'>
 <v:imagedata src="200501_rjsjs.files/image004.png" o:href="http://www.chinatnk.com/netadmin/oldchild/jsjsj/spks/gc/gc05_1s2.gif"/>
</v:shape><![endif]--><![if !vml]><img width=10 height=12
src="200501_rjsjs.files/image005.gif" v:shapes="_x0000_i1029"><![endif]>v)(<!--[if gte vml 1]><v:shape
 id="_x0000_i1030" type="#_x0000_t75" alt="" style='width:7.5pt;height:9pt'>
 <v:imagedata src="200501_rjsjs.files/image004.png" o:href="http://www.chinatnk.com/netadmin/oldchild/jsjsj/spks/gc/gc05_1s2.gif"/>
</v:shape><![endif]--><![if !vml]><img width=10 height=12
src="200501_rjsjs.files/image005.gif" v:shapes="_x0000_i1030"><![endif]>w)(_____(36)____<sub>∧</sub>u[1]=v[1]<sub>∧</sub>v[2]
=w[1]<sub>∧</sub>w[3]='</span>红<span lang=EN-US>'<sub>∧</sub>_____(37)____)}<br>
</span>　　<span lang=EN-US>(33)A.FOREIGN KEY</span><span class=GramE>　　　　　　　　　　　</span><span
lang=EN-US>B.PRIMARY KEY&nbsp;<br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C.FOREIGN
KEY(Sno)REFERENCES S</span>　　<span lang=EN-US> D.FOREIGN KEY(Pno) REFERENCES P<br>
</span>　　<span lang=EN-US>(34)A.FOREIGN KEY</span><span class=GramE>　　　　　　　　　　　</span><span
lang=EN-US>B. PRIMARY KEY&nbsp;<br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C.FOREIGN
KEY(Sno)REFERENCES S</span>　　<span lang=EN-US> D.FOREIGN KEY(Pno) REFERENCES P<br>
</span>　　<span lang=EN-US>(35)A.FOREIGN KEY</span><span class=GramE>　　　　　　　　　　　</span><span
lang=EN-US> B. PRIMARY KEY&nbsp;<br>
</span><span class=GramE>　　　　</span><span lang=EN-US> C.FOREIGN
KEY(Sno)REFERENCES S</span>　　<span lang=EN-US> D.FOREIGN KEY(Pno) REFERENCES P<br>
</span>　　<span lang=EN-US>(36)A.S(u)<sub>∧</sub>SP(v)<sub>∧</sub>P(w)</span><span
class=GramE>　　　　　　　　</span><span lang=EN-US> B. SP(u)<sub>∧</sub>S(v)<sub>∧</sub>P(w)<br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C. P(u)<sub>∧</sub>SP(v)<sub>∧</sub>S(w)</span><span
class=GramE>　　　　　　　　</span><span lang=EN-US>D. S(u)<sub>∧</sub>P(v)<sub>∧</sub>SP(w)<br>
</span>　　<span lang=EN-US>(37)A.t[1]=u[1]<sub>∧</sub>t[2]=w[2]<sub>∧</sub>t[3]=v[4]</span>　<span
lang=EN-US> B. t[1]=v[1]<sub>∧</sub>t[2]=u[2]<sub>∧</sub>t[3]=u[4]<br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C. t[1]=w[1]<sub>∧</sub>t[2]=u[2]<sub>∧</sub>t[3]=v[4]</span>　<span
lang=EN-US>D. t[1]=u[1]<sub>∧</sub>t[2]=v[2]<sub>∧</sub>t[3]=v[4] <o:p></o:p></span></span></p>

<p class=MsoNormal align=left style='mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;mso-pagination:widow-orphan'><span style='font-size:12.0pt;
font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt'>　　<span
lang=EN-US>● </span>循环链表的主要优点是<span lang=EN-US>_____(38)____</span>。<span
lang=EN-US><SPAN lang=EN-US 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">(</SPAN><SPAN 
style="COLOR: white; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">欢迎访问软件考试网<SPAN 
lang=EN-US>www.hbsoft.net)</SPAN></SPAN><br>
</span>　　（<span lang=EN-US>38</span>）<span lang=EN-US>A.</span>不再需要头指针了<span
lang=EN-US>&nbsp;<br>
</span><span class=GramE>　　　　　</span><span lang=EN-US>B. </span>已知某个结点的位置后，能很容易找到它的直接前驱结点<span
lang=EN-US>&nbsp;<br>
</span><span class=GramE>　　　　　</span><span lang=EN-US>C.</span>在进行删除操作后，能保证链表<span
class=GramE>不</span>断开<span lang=EN-US>&nbsp;<br>
</span><span cl
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