数模论坛

 找回密码
 注-册-帐-号
搜索
热搜: 活动 交友 discuz
楼主: amao

全国大学生数学建模竞赛论文LaTeX模板(CCT ver. 050828)

[复制链接]
发表于 2005-9-10 02:27:08 | 显示全部楼层
<>楼主,太棒了,可是为什么我编译了却显示不了中文,只能显示字母和数字呢?</P>
发表于 2005-9-10 03:06:21 | 显示全部楼层

[灌水]

他山之石可以攻玉
发表于 2005-9-10 18:57:20 | 显示全部楼层
<>楼主,我下载了,但是只能打开pdf文件,是只有pdf文件吗?我很菜,还是不会弄。究竟里面都说些什么</P>
<>[em04]</P>
<>如果不知道LaTeX是什么东西,就不用再搞了,短时间学不会的,而且不是这次竞赛必须的。</P>
[此贴子已经被amao于2005-9-10 14:09:03编辑过]

发表于 2005-9-10 19:00:23 | 显示全部楼层
<>会不会是我的电脑的问题啊,希望能得到大虾的帮助。我的qq是360614585。或者回到我的信箱里巴,感激不尽</P>[em07]
发表于 2005-9-10 19:20:39 | 显示全部楼层
<>Thanks</P>
发表于 2005-9-10 20:13:35 | 显示全部楼层
[em07][em07][em07][em07][em07][em07][em07][em07][em07]
发表于 2005-9-11 19:12:29 | 显示全部楼层
<  align=center>《数学建模》练习试题<FONT face="Times New Roman">2003<p></p></FONT></P>
< ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
< ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">1</FONT>、假设岛上不断有大陆来的移民。再假设</FONT><v:shapetype><FONT face="Times New Roman"><FONT size=3> <v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path connecttype="rect" gradientshapeok="t" extrusionok="f"></v:path><lock aspectratio="t" v:ext="edit"></lock></FONT></FONT></v:shapetype><v:shape><v:imagedata></v:imagedata></v:shape><FONT size=3>时刻大陆上有</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>种人,岛上有</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>种人。移居到岛上并在那边开拓殖民地的新人种的增加速度与大陆上尚未移居到岛上的人种数</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>成比例,比例常数为</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>。此外,人种的灭绝速度与岛上的人种数成比例,比例常数为</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>。证明岛上的人种数将达到一个平衡值,它近似为</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>。画出其与</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>的函数曲线。√</FONT></P>
<P ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">2</FONT>、与<FONT face="Times New Roman">Logistic</FONT>模型不同的另一种描述种群增长规律的是<FONT face="Times New Roman">Gompertz</FONT>模型:</FONT></P>
<P ><v:shape><v:imagedata><FONT size=3></FONT></v:imagedata></v:shape><FONT size=3>,<FONT face="Times New Roman"> </FONT>其中</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>和</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>的意义与<FONT face="Times New Roman">Logistic</FONT>模型相同。</FONT></P>
<P ><FONT size=3>设渔场鱼量的自然增长服从这个模型,且单位时间捕捞量为</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>。讨论渔场鱼量的平衡点及其稳定性,求最大持续产量</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>及获得最大产量的捕捞强度</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>和渔场鱼量水平</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>。(<FONT face="Times New Roman">p201ex2</FONT>)√</FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">3</FONT>、外出旅游选择交通工具(包括飞机、火车、汽车),由于不同人外出的目的不同,经济条件不同,体质、心理、经历、兴趣都不同,考虑到安全、舒适、快速、经济、游览等因素,问应如何选择交通工具。√<p></p></FONT></P>
<P ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">4</FONT>、鼓励儿童们学习的一种方法是:当他们回答问题正确时给予奖励,而当他们回答不正确时不予奖励(或者有时给予惩罚)。教育工作者感兴趣的问题是设计一种能提高学习效率的方案。试建立一个在儿童中进行试验之前就能评估不同方案的数学模型。</FONT></P>
<P ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">5</FONT>、一条流水线有五个岗位,分别完成某产品装配的五道工序。现分配甲、乙、丙、丁、戊五个工人去操作。由于每人专长不同,各个工人在不同岗位上生产效率不一样,具体数字见表<FONT face="Times New Roman">2</FONT>。问应如何分配每个工人的操作岗位,使这条流水线的生产能力最大?</FONT></P>
<P  align=center><FONT size=3>表<FONT face="Times New Roman"> 2</FONT></FONT></P>
<DIV align=center>
<TABLE  cellSpacing=0 cellPadding=0 border=1>

<TR>
<TD  width=129>
<P >岗位</P>
<P >工人<FONT face="Times New Roman"> </FONT></P></TD>
<TD  width=77>
<P  align=center>Ⅰ</P></TD>
<TD  width=77>
<P  align=center>Ⅱ</P></TD>
<TD  width=77>
<P  align=center>Ⅲ</P></TD>
<TD  width=77>
<P  align=center>Ⅳ</P></TD>
<TD  width=77>
<P  align=center>Ⅴ</P></TD></TR>
<TR>
<TD  width=129>
<P  align=center>甲</P>
<P  align=center>乙</P>
<P  align=center>丙</P>
<P  align=center>丁</P>
<P  align=center>戊</P></TD>
<TD  width=77>
<P  align=center><FONT face="Times New Roman">2</FONT></P>
<P  align=center><FONT face="Times New Roman">3</FONT></P>
<P  align=center><FONT face="Times New Roman">2</FONT></P>
<P  align=center><FONT face="Times New Roman">5</FONT></P>
<P  align=center><FONT face="Times New Roman">3</FONT></P></TD>
<TD  width=77>
<P  align=center><FONT face="Times New Roman">3</FONT></P>
<P  align=center><FONT face="Times New Roman">4</FONT></P>
<P  align=center><FONT face="Times New Roman">5</FONT></P>
<P  align=center><FONT face="Times New Roman">2</FONT></P>
<P  align=center><FONT face="Times New Roman">7</FONT></P></TD>
<TD  width=77>
<P  align=center><FONT face="Times New Roman">4</FONT></P>
<P  align=center><FONT face="Times New Roman">2</FONT></P>
<P  align=center><FONT face="Times New Roman">3</FONT></P>
<P  align=center><FONT face="Times New Roman">3</FONT></P>
<P  align=center><FONT face="Times New Roman">6</FONT></P></TD>
<TD  width=77>
<P  align=center><FONT face="Times New Roman">1</FONT></P>
<P  align=center><FONT face="Times New Roman">5</FONT></P>
<P  align=center><FONT face="Times New Roman">4</FONT></P>
<P  align=center><FONT face="Times New Roman">2</FONT></P>
<P  align=center><FONT face="Times New Roman">2</FONT></P></TD>
<TD  width=77>
<P  align=center><FONT face="Times New Roman">7</FONT></P>
<P  align=center><FONT face="Times New Roman">6</FONT></P>
<P  align=center><FONT face="Times New Roman">1</FONT></P>
<P  align=center><FONT face="Times New Roman">5</FONT></P>
<P  align=center><FONT face="Times New Roman">4</FONT></P></TD></TR></TABLE></DIV>
<P ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">6</FONT>、一商店拟出集甲商品,已知每单位甲商品成本为<FONT face="Times New Roman">50</FONT>元,售价<FONT face="Times New Roman">70</FONT>元,如果售不出去,每单位商品将损失<FONT face="Times New Roman">10</FONT>元。已知甲商品销售量</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>服从以参数</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape><FONT size=3>(即平均销量为<FONT face="Times New Roman">6</FONT>单位)的泊松分布</FONT><v:shape><FONT face="Times New Roman"><FONT size=3> <v:imagedata></v:imagedata></FONT></FONT></v:shape></P>
<P ><FONT size=3>问该商店订购量应为多少单位,才能使平均收益最大?√</FONT></P>
<P ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">7</FONT>、某商店预期商品年销售量为<FONT face="Times New Roman">350</FONT>件,且在全年(按<FONT face="Times New Roman">300</FONT>天计)内基本均衡。若该商店每组织一次进货需订购费<FONT face="Times New Roman">50</FONT>元,存贮费每年每件<FONT face="Times New Roman">13.75</FONT>元,当供应短缺时,每短缺一件的机会损失为<FONT face="Times New Roman">25</FONT>元。已知订货提前期为零,求经济订货批量和最大允许的短缺数量。</FONT></P>
<P ><FONT face="Times New Roman"><FONT size=3> <p></p></FONT></FONT></P>
发表于 2005-9-11 19:16:47 | 显示全部楼层
< 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">
<br></FONT>
<p>
< 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">
<p></FONT>
<p>
< 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">17</FONT>、某商店要订购一批商品零售,设购进价<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,售出价<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,订购费<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>(与数量无关),随机需求量<I><FONT face="Times New Roman">r</FONT></I>的概率密度为<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,每件商品的贮存费为<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>(与时间无关)。问如何确定订购量才能使商店的平均利润最大,这个平均利润是多少。为使这个平均利润为正值,需要对订购费<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>加什么限制?</P>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">
<p></FONT>
<p>
<P mso-char-indent-size: 2.0; mso-char-indent-count: TEXT-INDENT: 0pt; 0cm 11.8pt? 23.6pt;><FONT face="Times New Roman">18</FONT>、下表列出了某城市<FONT face="Times New Roman">18</FONT>位<FONT face="Times New Roman">35</FONT>岁~<FONT face="Times New Roman">44</FONT>岁经理的年平均收入<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>(千元),风险偏好度<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>和人寿保险额<I><FONT face="Times New Roman">y</FONT></I>(千元)的数据,其中风险偏好度是根据发给每个经理的问卷调查表综合评估得到的,它的数值越大,就越偏爱高风险。研究人员想研究此年龄段中的经理所投保的人寿保险额与年均收入及风险偏好度之间的关系。研究者预计,经理的年均收入和人寿保险额之间存在着二次关系,并有把握地认为风险偏好度对人寿保险额有线性效应,但对于风险偏好度对人寿保险额是否有二次效应以及两个自变量是否对人寿保险额有交互效应,心中没底。
<p>
<p>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm>请你通过表<FONT face="Times New Roman">14</FONT>中的数据来建立一个合适的回归模型,验证上面的看法,并给出进一步的分析。√</P>
<P align=center 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm center; TEXT-ALIGN:>表<FONT face="Times New Roman"> 14</FONT></P>
<TABLE cellSpacing=0 cellPadding=0 border=1 0cm 1.5pt? windowtext solid mso-border-bottom-alt: 1.5pt; mso-border-top-alt: 5.4pt; 5.4pt mso-padding-alt: collapse; BORDER-COLLAPSE: none; medium BORDER-BOTTOM: BORDER-LEFT: 17.4pt; MARGIN-LEFT: BORDER-TOP:>

<TR>
<TD width=56 windowtext 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: transparent? BACKGROUND-COLOR: solid; 0.5pt 0cm; PADDING-TOP: 42pt; WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT:>
<P align=center 0pt; 0cm TEXT-ALIGN: center?>序号</P></TD>
<TD width=200 windowtext solid 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0.5pt 0cm; PADDING-TOP: WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: .5pt? mso-border-left-alt: transparent; 150.1pt; double;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman"></FONT><v:shape><FONT face="Times New Roman"><v:imagedata></v:imagedata></FONT></v:shape><FONT face="Times New Roman"></FONT><v:shape><v:imagedata><FONT face="Times New Roman"></FONT></v:imagedata></v:shape><FONT face="Times New Roman"></FONT><v:shape><FONT face="Times New Roman"><v:imagedata></v:imagedata></FONT></v:shape></P></TD>
<TD width=56 1.5pt? windowtext 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0.5pt 0cm; PADDING-TOP: WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: mso-border-left-alt: transparent; double 41.9pt;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?>序号</P></TD>
<TD width=224 windowtext solid 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0.5pt 0cm; PADDING-TOP: WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: .5pt? mso-border-left-alt: transparent; 167.65pt;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman"></FONT><v:shape><FONT face="Times New Roman"><v:imagedata></v:imagedata></FONT></v:shape><FONT face="Times New Roman"></FONT><v:shape><v:imagedata><FONT face="Times New Roman"></FONT></v:imagedata></v:shape><FONT face="Times New Roman"></FONT><v:shape><FONT face="Times New Roman"><v:imagedata></v:imagedata></FONT></v:shape></P></TD></TR>
<TR>
<TD width=56 windowtext solid mso-border-top-alt: 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0.5pt 0cm; PADDING-TOP: 42pt; WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: .5pt? transparent;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">1</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">2</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">3</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">4</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">5</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">6</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">7</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">8</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">9</FONT></P></TD>
<TD width=200 windowtext solid mso-border-top-alt: 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0cm; PADDING-TOP: WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: .5pt? mso-border-left-alt: transparent; 150.1pt; double; .5pt;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">196 66.290 7</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">63 40.964 5</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">252 72.996 10</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">84 45.010 6</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">126 57.204 4</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">14 26.852 5</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">49 38.122 4</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">49 35.840 6</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">266 75.796 9</FONT></P></TD>
<TD width=56 windowtext solid 1.5pt; mso-border-top-alt: 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0.5pt 0cm; PADDING-TOP: WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: .5pt? mso-border-left-alt: transparent; double 41.9pt;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">10</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">11</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">12</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">13</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">14</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">15</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">16</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">17</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">18</FONT></P></TD>
<TD width=224 windowtext solid mso-border-top-alt: 5.4pt; BORDER-BOTTOM: BORDER-LEFT: BORDER-TOP: BACKGROUND-COLOR: solid; 0cm; PADDING-TOP: WIDTH: #d4d0c8; PADDING-BOTTOM: PADDING-LEFT: 1.5pt PADDING-RIGHT: .5pt? mso-border-left-alt: transparent; 167.65pt; .5pt;>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">49 37.408 5</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">105 54.376 2</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">98 46.186 7</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">77 46.130 4</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">14 30.366 3</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">56 39.060 5</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">245 79.380 1</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">133 52.766 8</FONT></P>
<P align=center 0pt; 0cm TEXT-ALIGN: center?><FONT face="Times New Roman">133 55.916 6</FONT></P></TD></TR></TABLE>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">
<p></FONT>
<p>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">19</FONT>、两种不同的外部表征是由两种不同基因决定的,这两种基因的遗传关系是相互独立的。例如猪的毛有颜色表征(黑和白)与质地表征(粗和光)。对于每一种表征仍分为优种<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,混种<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>和劣种<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape><FONT face="Times New Roman">3</FONT>种基因类型,两种表征的组合则有<FONT face="Times New Roman">9</FONT>种基因类型。在完全优势遗传中,优种和混种的猪毛颜色黑、质地粗,劣种则颜色白、质地光,这样共有<FONT face="Times New Roman">4</FONT>种外部表征组合,即黑粗、黑光、白粗、白光。假设群体的两种外部表征对应的基因中<I><FONT face="Times New Roman">d</FONT></I>和<I><FONT face="Times New Roman">r</FONT></I>的比例相同(即均为<FONT face="Times New Roman">1/2</FONT>),在随机交配情况下构造马氏链模型。证明在稳定情况下上述<FONT face="Times New Roman">4</FONT>种外部表征组合的比例为<FONT face="Times New Roman">9:3:3:1</FONT>。</P>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">
<p></FONT>
<p>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">20</FONT>、一家集生产、销售于一体的公司,希望生产率和贮存量都尽量稳定在预先设定的水平上,如果销售量可以预测,公司需要制订一个根据贮存量控制生产率的策略。</P>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm>(<FONT face="Times New Roman">1</FONT>)以在一定时间<I><FONT face="Times New Roman">T</FONT></I>内生产率和贮存量与设定值误差的(加权)平方和最小为目标,给出泛函极值问题。</P>
<P 12.0pt? mso-char-indent-size: 2.0; mso-char-indent-count: 24pt; TEXT-INDENT: 0pt; 0cm>(<FONT face="Times New Roman">2</FONT>)设销售量为常数,求出最优解,并在<I><FONT face="Times New Roman">T</FONT></I>很大的情况下给出生产率和贮存量之间的关系。</P>
发表于 2005-9-11 19:17:33 | 显示全部楼层
< 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">13</FONT>、排名次的另一方法是考察“失分向量”以代替得分向量(选手输掉场次的数目为他的失分),按失分由小到大排列名次。</P>
< 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">1</FONT>)证明:这相当于把竞赛图中各有向边反向后,按得分向量排列名次,再把名次倒过来。</P>
< 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">2</FONT>)用失分向量方法对<FONT face="Times New Roman">8.2</FONT>节图<FONT face="Times New Roman">13</FONT>(<FONT face="Times New Roman">4</FONT>)的竞赛图排列名次,结果与用得分向量方法一致吗?</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">14</FONT>、某甲(农民)有一块土地,若从事农业生产可收入<FONT face="Times New Roman">1</FONT>万元,若将土地租给某乙(企业家)用于工业生产,可收入<FONT face="Times New Roman">3</FONT>万元。当旅店老板请企业家参与经营时,收入达<FONT face="Times New Roman">4</FONT>万元。为促成最高收入的实现,试用<FONT face="Times New Roman">Shapley</FONT>值方法分配各人的所得。√</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">15</FONT>、理事会有五个常任理事和十个非常任理事,提案仅当全部常任理事和至少四个非常任理事赞成时的方向通过。求每位常任理事和每位非常任理事在投票中的权重。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">16</FONT>、设<v:shapetype><FONT face="Times New Roman"> <v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path connecttype="rect" gradientshapeok="t" extrusionok="f"></v:path><lock aspectratio="t" v:ext="edit"></lock></FONT></v:shapetype><v:shape><v:imagedata></v:imagedata></v:shape>和<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>分别是选民和候选人集合,<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>是<I><FONT face="Times New Roman">I</FONT></I>对<I><FONT face="Times New Roman">A</FONT></I>的一次投票(为简单起见,不考虑两候选人等同的情况)。选举结果<I><FONT face="Times New Roman">P</FONT></I>不是对<I><FONT face="Times New Roman">A</FONT></I>的一个排序,而只是决定一名优胜者(第一名)。现举出以下几种选举规则:</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">1</FONT>)<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>中排在第一名最多的那位候选人为优胜者。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">2</FONT>)若多于或等于半数的选民将<I><FONT face="Times New Roman">x</FONT></I>排在其它候选人之前,<I><FONT face="Times New Roman">x</FONT></I>是优胜者。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">3</FONT>)若多于或等于半数的选民将<I><FONT face="Times New Roman">x</FONT></I>排在第一位,则<I><FONT face="Times New Roman">x</FONT></I>是优胜者;若没有这样的<I><FONT face="Times New Roman">x</FONT></I>,就把排在第一位最多的两个候选人<I><FONT face="Times New Roman">x</FONT></I>,<I><FONT face="Times New Roman">y</FONT></I>进行比较,当多于或等于半数的选民将<I><FONT face="Times New Roman">x</FONT></I>排在<I><FONT face="Times New Roman">y</FONT></I>前面时,<I><FONT face="Times New Roman">x</FONT></I>是优胜者。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">4</FONT>)得分(<FONT face="Times New Roman">Borda</FONT>数)居第一位的为优胜者。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">问这些规则都能确定优胜者吗?对于同一次投票这些规则决定的优胜者相同吗?你还能提出一些决定优胜者的选举规则吗?</P>
发表于 2005-9-11 19:19:14 | 显示全部楼层
< 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">8</FONT>、学校共<FONT face="Times New Roman">1000</FONT>名学生,<FONT face="Times New Roman">235</FONT>人住在<I><FONT face="Times New Roman">A</FONT></I>宿舍,<FONT face="Times New Roman">333</FONT>人住在<I><FONT face="Times New Roman">B</FONT></I>宿舍,<FONT face="Times New Roman">432</FONT>人住在<I><FONT face="Times New Roman">C</FONT></I>宿舍,学生们要组织一个<FONT face="Times New Roman">10</FONT>人的委员会,试用下列办法分配各宿舍的委员数:</P>
< 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">1</FONT>)按比例分配取整数的名额后,剩下的名额按惯例分给小数部分较大者。</P>
< 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">2</FONT>)<FONT face="Times New Roman">2.1</FONT>节中的<I><FONT face="Times New Roman">Q</FONT></I>值方法。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">3</FONT>)<FONT face="Times New Roman">d’Hondt</FONT>方法:将<I><FONT face="Times New Roman">A</FONT></I>,<I><FONT face="Times New Roman">B</FONT></I>,<I><FONT face="Times New Roman">C</FONT></I>各宿舍的人数用正整数<v:shapetype><FONT face="Times New Roman"> <v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path connecttype="rect" gradientshapeok="t" extrusionok="f"></v:path><lock aspectratio="t" v:ext="edit"></lock></FONT></v:shapetype><v:shape><v:imagedata></v:imagedata></v:shape>相除,其商数如下表<FONT face="Times New Roman">8</FONT>:</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; TEXT-ALIGN: center; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt" align=center>表<FONT face="Times New Roman"> 8</FONT></P>
<DIV align=center>
<TABLE medium none; BORDER-TOP: medium none; MARGIN-LEFT: 19.95pt; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-top-alt: solid windowtext 1.5pt; mso-border-bottom-alt: solid windowtext 1.5pt" cellSpacing=0 cellPadding=0 border=1>

<TR>
<TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61.45pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" width=82>
<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman"> <p></p></FONT></P></TD>
<TD #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 337.65pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt" width=450>
<P 0cm 0cm 0pt; TEXT-INDENT: 12pt; mso-char-indent-count: 1.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">1        2        3        4        5        </FONT>…</P></TD></TR>
<TR>
<TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61.45pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt" width=82>
<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><I><FONT face="Times New Roman">A<p></p></FONT></I></P>
<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><I><FONT face="Times New Roman">B<p></p></FONT></I></P>
<P 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><I><FONT face="Times New Roman">C</FONT></I></P></TD>
<TD #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 337.65pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1.5pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=450>
<P 0cm 0cm 0pt; TEXT-INDENT: 12pt; mso-char-indent-count: 1.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"><U>235</U>    <U>117.5</U>     78.3     58.75      </FONT>…</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 12pt; mso-char-indent-count: 1.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"><U>333</U>    <U>166.5</U>     <U>111</U>     83.25       </FONT>…</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 12pt; mso-char-indent-count: 1.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"><U>432</U>    <U>216</U>      <U>144</U>     <U>108</U>        <U>86.4</U></FONT></P></TD></TR></TABLE></DIV>
<P 0cm 0cm 0pt">将所得商数从大到小取前<FONT face="Times New Roman">10</FONT>个(<FONT face="Times New Roman">10</FONT>为席位数),在数字下标以横线,表中<I><FONT face="Times New Roman">A</FONT></I>,<I><FONT face="Times New Roman">B</FONT></I>,<I><FONT face="Times New Roman">C</FONT></I>行有横线的数分别为<FONT face="Times New Roman">2</FONT>,<FONT face="Times New Roman">3</FONT>,<FONT face="Times New Roman">5</FONT>,这就是<FONT face="Times New Roman">3</FONT>个宿舍分配的席位。你能解释这种方法的道理吗。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">如果委员会从<FONT face="Times New Roman">10</FONT>人增到<FONT face="Times New Roman">15</FONT>人,用以上<FONT face="Times New Roman">3</FONT>种方法再分配名额,将<FONT face="Times New Roman">3</FONT>种方法两次分配的结果列表比较。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">4</FONT>)你能提出其它的方法吗。用你的方法分配上面的名额。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">(p55ex1)</FONT> √</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">9</FONT>、在超市购物时你注意到大包装商品比小包装商品便宜这种现象了吗,比如洁银牙膏<FONT face="Times New Roman">50g</FONT>装的每支<FONT face="Times New Roman">1.50</FONT>元,<FONT face="Times New Roman">120g</FONT>装的每支<FONT face="Times New Roman">3.00</FONT>元,二者单位重量的价格比是<FONT face="Times New Roman">1.2</FONT>:<FONT face="Times New Roman">1</FONT>,试用比例方法构造模型解释这个现象。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">1</FONT>)分析商品价格<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>与商品重量<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>的关系,价格由生产成本、包装成本和其它成本等决定,这些成本中有的与重量<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>成正比,有的与表面积成正比,还有与<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>无关的因素。</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt">(<FONT face="Times New Roman">2</FONT>)给出单位重量价格<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>与<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>的关系,画出它的简图,说明<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>越大<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>越小,但是随着<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>的增加<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>减小的程度变小,解释实际意义是什么。√</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman">10</FONT>、建立不允许缺货的生产销售存贮模型,设生产速度为常数<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,销售速率为常数<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>。在每个生产周期<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>内,开始的一段时间(<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>)一边生产一边销售,后来的一段时间(<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>)只销售不生产,画出贮存量<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>的<FONT face="Times New Roman"> </FONT>图形,设每次生产准备费为<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,单位时间每件产品贮存费为<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>,以总费用最小为目标确定最优生产周期,讨论<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>和<v:shape><FONT face="Times New Roman"> <v:imagedata></v:imagedata></FONT></v:shape>的情况。√</P>
<P 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt"><FONT face="Times New Roman"> <p></p></FONT></P>
您需要登录后才可以回帖 登录 | 注-册-帐-号

本版积分规则

小黑屋|手机版|Archiver|数学建模网 ( 湘ICP备11011602号 )

GMT+8, 2024-11-29 05:32 , Processed in 0.058485 second(s), 13 queries .

Powered by Discuz! X3.4

Copyright © 2001-2021, Tencent Cloud.

快速回复 返回顶部 返回列表