📄 上午.htm
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>9:30</SPAN></P></TD>
<TD
style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>80</SPAN></P></TD></TR>
<TR>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>J3</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>8:20</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>10</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>9:00</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>9:10</SPAN></P></TD>
<TD
style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>50</SPAN></P></TD></TR>
<TR>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>J4</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>8:40</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>15</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>9:30</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid"
vAlign=top width=104>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=EN-US>9:45</SPAN></P></TD>
<TD
style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 78.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid"
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN
lang=EN-US>65</SPAN></P></TD></TR></TBODY></TABLE><FONT lang=ZH-CN
face=宋体 size=2>
<P class=MsoNormal style="TEXT-INDENT: 17.95pt"><SPAN
lang=EN-US>(29) A</SPAN><SPAN
style="FONT-FAMILY: 宋体">、先来先服务</SPAN><SPAN lang=EN-US>
B</SPAN><SPAN style="FONT-FAMILY: 宋体">、短作业优先</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、响应比高者优先</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、不能确定</SPAN></P></DIV>
<P><SPAN lang=EN-US style="FONT-FAMILY: Times New Roman"><BR
style="PAGE-BREAK-BEFORE: always" clear=all> </SPAN></P>
<DIV class=Section2 style="LAYOUT-GRID: 15.6pt none">
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 宋体">●为了保证对系统中文件的安全管理，任何一个用户进入系统时都必须进行注册，通常将这一级安全管理称之为</SPAN><U><SPAN
lang=EN-US> (30) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">安全管理。</SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 17.85pt"><SPAN
style="FONT-FAMILY: 宋体">在进程状态转换过程中，可能会引起进程阻塞的原因是</SPAN><U><SPAN
lang=EN-US> (31) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">。计算机系统出现死锁是因为</SPAN><SPAN
lang=EN-US><BR><U> </U></SPAN><U><SPAN
style="FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US>32)
</SPAN></U><SPAN style="FONT-FAMILY: 宋体">。</SPAN><SPAN
lang=EN-US> </SPAN><SPAN
style="FONT-FAMILY: 宋体">不通过</SPAN><SPAN lang=EN-US>CPU</SPAN><SPAN
style="FONT-FAMILY: 宋体">进行主存与</SPAN><SPAN lang=EN-US>I</SPAN><SPAN
style="FONT-FAMILY: 宋体">／</SPAN><SPAN lang=EN-US>0</SPAN><SPAN
style="FONT-FAMILY: 宋体">设备间大量的信息交换方式可以是</SPAN><U><SPAN
lang=EN-US> (33) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">方式。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (30)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、用户级</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、系统级</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、文件级</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、目录级</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (31)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、时间片到</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、执行</SPAN><SPAN lang=EN-US>V</SPAN><SPAN
style="FONT-FAMILY: 宋体">操作</SPAN><SPAN lang=EN-US>
C</SPAN><SPAN style="FONT-FAMILY: 宋体">、</SPAN><SPAN
lang=EN-US>I/O</SPAN><SPAN style="FONT-FAMILY: 宋体">完成</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、执行</SPAN><SPAN lang=EN-US>P</SPAN><SPAN
style="FONT-FAMILY: 宋体">操作</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (32)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、系统中有多个阻塞进程</SPAN></P>
<P class=MsoNormal><SPAN
lang=EN-US>
B</SPAN><SPAN style="FONT-FAMILY: 宋体">、资源数大大小于系统中的进程数</SPAN></P>
<P class=MsoNormal><SPAN
lang=EN-US>
C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、系统中多个进程同时申请的资源总数大大超过系统资源总数．</SPAN></P>
<P class=MsoNormal><SPAN
lang=EN-US>
D</SPAN><SPAN style="FONT-FAMILY: 宋体">、若干进程相互等待对方已占有的资源</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (33)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、</SPAN><SPAN
lang=EN-US>DMA B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、中断</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、查询等待</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、程序控制</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体">●</SPAN><SPAN
lang=EN-US> </SPAN><SPAN
style="FONT-FAMILY: 宋体">设某种二叉树有如下特点；结点的子树数目不是</SPAN><SPAN
lang=EN-US>2</SPAN><SPAN style="FONT-FAMILY: 宋体">个，则是</SPAN><SPAN
lang=EN-US>0</SPAN><SPAN
style="FONT-FAMILY: 宋体">个。这样的一棵二叉树中有</SPAN><SPAN
lang=EN-US>m(m>O)</SPAN><SPAN
style="FONT-FAMILY: 宋体">个子树为</SPAN><SPAN lang=EN-US>0</SPAN><SPAN
style="FONT-FAMILY: 宋体">的结点时，该二叉树上的结点总数为</SPAN><U><SPAN
lang=EN-US> (34) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (34)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">．</SPAN><SPAN
lang=EN-US>2m+l B</SPAN><SPAN
style="FONT-FAMILY: 宋体">．</SPAN><SPAN
lang=EN-US>2m-1 C</SPAN><SPAN
style="FONT-FAMILY: 宋体">．</SPAN><SPAN lang=EN-US>2(m</SPAN><SPAN
style="FONT-FAMILY: 宋体">—</SPAN><SPAN
lang=EN-US>1) D</SPAN><SPAN
style="FONT-FAMILY: 宋体">．</SPAN><SPAN lang=EN-US>2(m+1)</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 宋体">●数据库系统实现数据独立性是因为采用了</SPAN><U><SPAN
lang=EN-US> (35) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">。当两个子查询的结果</SPAN><U><SPAN lang=EN-US>
(36) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">时，可以执行并、交、差操作。</SPAN><SPAN
lang=EN-US>SELECT</SPAN><SPAN
style="FONT-FAMILY: 宋体">语句中“</SPAN><SPAN lang=EN-US>SELECT
DISTINCT</SPAN><SPAN style="FONT-FAMILY: 宋体">”表示查询结果中</SPAN><U><SPAN
lang=EN-US> (37) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">。若</SPAN><SPAN lang=EN-US>4</SPAN><SPAN
style="FONT-FAMILY: 宋体">元关系</SPAN><SPAN lang=EN-US>R</SPAN><SPAN
style="FONT-FAMILY: 宋体">为：</SPAN><SPAN lang=EN-US>R(A</SPAN><SPAN
style="FONT-FAMILY: 宋体">，</SPAN><SPAN lang=EN-US>B</SPAN><SPAN
style="FONT-FAMILY: 宋体">，</SPAN><SPAN lang=EN-US>C</SPAN><SPAN
style="FONT-FAMILY: 宋体">，</SPAN><SPAN lang=EN-US>D)</SPAN><SPAN
style="FONT-FAMILY: 宋体">，则</SPAN><U><SPAN lang=EN-US>
(38) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">。给定关系模式学生</SPAN><SPAN
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