销售选址
<p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; VERTICAL-ALIGN: top; LAYOUT-GRID-MODE: char; TEXT-ALIGN: left;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p><font face="Times New Roman"></font></p></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; VERTICAL-ALIGN: top; LAYOUT-GRID-MODE: char; TEXT-INDENT: 24pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";"><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; VERTICAL-ALIGN: top; LAYOUT-GRID-MODE: char; TEXT-ALIGN: left;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p><font face="Times New Roman"></font></p></span></p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">某公司准备在某市建立两个销售代理点，向该市</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">7</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">个区的顾客销售商品，每个区的顾客数量（单位：千人）已经表示在下图上，每个销售代理点只能向本区和一个相邻区的顾客销售商品，这两个销售代理点应该建在何处，才能使所能服务的顾客数量最大，试建立模型并求解。</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; VERTICAL-ALIGN: top; LAYOUT-GRID-MODE: char; TEXT-INDENT: 24pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0;"><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_i1025" type="#_x0000_t75" style="WIDTH: 362.25pt; HEIGHT: 147.75pt;"><imagedata croptop="19351f" otitle="tu" src="file:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\msohtml1\01\clip_image001.png"></imagedata></shape></span></p></span></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; VERTICAL-ALIGN: top; LAYOUT-GRID-MODE: char; TEXT-INDENT: 24pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0;"><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_i1025" type="#_x0000_t75" style="WIDTH: 362.25pt; HEIGHT: 147.75pt;"><imagedata croptop="19351f" otitle="tu" src="file:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\msohtml1\01\clip_image001.png"></imagedata></shape></span></p> 求解，呵呵
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