通信系统中带宽的概念.mht

北京邮电大学的初级通信导0论PPT

TEXT-INDENT: -21pt; TEXT-JUSTIFY: inter-ideograph; mso-list: l0 level2 =
lfo4; tab-stops: list 63.0pt"><![if !supportLists]><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">2.<SPAN=20
style=3D"FONT: 7pt 'Times New =
Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
</SPAN></SPAN><![endif]><SPAN lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=CD=AC=D6=E1=B5=E7=C0=C2=A3=AC=C6=E4=B4=AB=CA=E4=B4=F8=BF=ED=CE=AA=
=BC=B8=CA=AE</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">MHz~1GHz<SPAN=20
lang=3DZH-CN>=A3=A8</SPAN>RG</SPAN><SPAN=20
style=3D"FONT-FAMILY: Symbol; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Symbol"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Symbol">-</SPAN></SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">8<SPAN=20
lang=3DZH-CN>=A1=A2</SPAN>RG</SPAN><SPAN=20
style=3D"FONT-FAMILY: Symbol; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Symbol"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Symbol">-</SPAN></SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">58<SPAN=20
lang=3DZH-CN>=A1=A2</SPAN>RG</SPAN><SPAN=20
style=3D"FONT-FAMILY: Symbol; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Symbol"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Symbol">-</SPAN></SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">59<SPAN=20
lang=3DZH-CN>=A1=A2</SPAN>RG</SPAN><SPAN=20
style=3D"FONT-FAMILY: Symbol; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Symbol"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Symbol">-</SPAN></SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">62<SPAN=20
lang=3DZH-CN>=B5=C8=A3=A9=A3=AC=C8=E7=D4=DA</SPAN>CATV<SPAN =
lang=3DZH-CN>=CD=F8=D6=D0=D3=C3=BB=A7=D6=D5=B6=CB=B5=BD=B9=E2=BD=DA=B5=E3=
=BC=E4=B5=C4=B2=BF=B7=D6=A3=AC=CE=AA</SPAN>75<SPAN=20
lang=3DZH-CN>=C5=B7=B5=C4=CD=AC=D6=E1=B5=E7=C0=C2</SPAN>(RG</SPAN><SPAN=20
style=3D"FONT-FAMILY: Symbol; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Symbol"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Symbol">-</SPAN></SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">59)<SPAN=20
lang=3DZH-CN>=A1=A3</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; MARGIN-LEFT: 63pt; TEXT-ALIGN: justify; =
TEXT-INDENT: -21pt; TEXT-JUSTIFY: inter-ideograph; mso-list: l0 level2 =
lfo4; tab-stops: list 63.0pt"><![if !supportLists]><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">3.<SPAN=20
style=3D"FONT: 7pt 'Times New =
Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
</SPAN></SPAN><![endif]><SPAN lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=CB=AB=BD=CA=CF=DF</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">(Twist=20
Pair)<SPAN =
lang=3DZH-CN>=A3=AC=B4=AB=CA=E4=B4=F8=BF=ED=CE=AA=BC=B8</SPAN>MHZ~<SPAN=20
lang=3DZH-CN>=BC=B8=CA=AE</SPAN>MHz(22~26AWG<SPAN =
lang=3DZH-CN>=A3=AC</SPAN>1~5<SPAN=20
lang=3DZH-CN>=C0=E0</SPAN>)<SPAN =
lang=3DZH-CN>=A1=A3</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; MARGIN-LEFT: 42pt; TEXT-ALIGN: justify; =
TEXT-INDENT: -21pt; TEXT-JUSTIFY: inter-ideograph; mso-list: l2 level1 =
lfo2; tab-stops: list 42.0pt"><![if !supportLists]><SPAN=20
style=3D"FONT-FAMILY: Wingdings">l<SPAN=20
style=3D"FONT: 7pt 'Times New =
Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
</SPAN></SPAN><![endif]><SPAN lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=CE=DE=CF=DF=BD=E9=D6=CA=D6=F7=D2=AA=CA=C7=D6=B8=CE=DE=CF=DF=B5=E7=
=B2=A8=A3=AC=C6=E4=D6=D0=C4=DC=B9=BB=CA=B9=D3=C3=B5=C4=C6=B5=B6=CE=D2=B2=B7=
=C7=B3=A3=BF=ED=A3=AC=BF=C9=CA=B9=D3=C3=B5=C4=B7=B6=CE=A7=CE=AA</SPAN><SP=
AN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">3KHz~3000GHz<SPAN=20
lang=3DZH-CN>=A1=A3=B5=B1=C7=B0=D6=BB=BB=AE=B7=D6=B5=BD=C1=CB</SPAN>9KHz~=
400GzH<SPAN=20
lang=3DZH-CN>=B5=C4=B7=B6=CE=A7=A3=AC=B6=F8=C4=BF=C7=B0=CA=B9=D3=C3=B5=C4=
=C6=B5=B6=CE=BD=F6=B5=BD=BC=B8=CA=AE=BC=AA=BA=D5=D7=C8=A1=A3</SPAN><o:p><=
/o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><B=20
style=3D"mso-bidi-font-weight: normal"><SPAN=20
style=3D"FONT-FAMILY: SimSun; FONT-SIZE: 12pt; mso-bidi-font-size: =
10.0pt; mso-hansi-font-family: 'Times New Roman'">3<SPAN=20
lang=3DZH-CN>=A1=A2=D0=C5=B5=C0=C8=DD=C1=BF=D3=EB=CF=E3=C5=A9=B6=A8=C0=ED=
</SPAN>(Shannon Theroy)<o:p></o:p></SPAN></B></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><SPAN=20
style=3D"mso-spacerun: yes">&nbsp;</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-INDENT: 0.25in; =
TEXT-JUSTIFY: inter-ideograph"><SPAN=20
lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=D2=B2=D0=ED=CE=D2=C3=C7=BB=E1=D3=D0=D5=E2=D1=F9=D2=BB=B8=F6=CE=CA=
=CC=E2=A3=BA=D4=DA</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">xDSL<SPAN=20
lang=3DZH-CN>=CF=B5=CD=B3=D6=D0=A3=AC=CE=D2=C3=C7=CA=B9=D3=C3=B5=C4=B4=AB=
=CA=E4=BD=E9=D6=CA=CA=C7=BD=F6=D3=D0=BC=B8=D5=D7=B4=F8=BF=ED=B5=C4=CB=AB=BD=
=CA=CF=DF=A3=AC=B6=F8=C9=CF=C3=E6=D2=AA=B4=AB=CB=CD=BC=B8=D5=D7=A1=A2=CA=AE=
=BC=B8=D5=D7=C9=F5=D6=C1=BC=B8=CA=AE=D5=D7=B4=F8=BF=ED=B5=C4=CA=FD=BE=DD=A3=
=AC=C8=E7=B4=CB=B8=DF=B5=C4=CB=D9=C2=CA=C4=DC=B1=A3=D6=A4=D4=DA=BC=B8=D5=D7=
=B4=F8=BF=ED=B5=C4=CB=AB=BD=CA=CF=DF=C9=CF=BF=C9=BF=BF=B4=AB=CA=E4=C2=F0=A3=
=BF=BB=F2=D5=DF=CB=B5=B4=D3=C1=ED=D2=BB=B8=F6=BD=C7=B6=C8=CB=B5=A3=AC=D4=DA=
=B8=F8=B6=A8=CD=A8=C6=B5=B4=F8=BF=ED</SPAN>(Hz)<SPAN=20
lang=3DZH-CN>=B5=C4=CE=EF=C0=ED=D0=C5=B5=C0=C9=CF=A3=AC=B5=BD=B5=D7=BF=C9=
=D2=D4=D3=D0=B6=E0=B8=DF=B5=C4=CA=FD=BE=DD=CB=D9=C2=CA</SPAN>(b/S)<SPAN=20
lang=3DZH-CN>=C0=B4=BF=C9=BF=BF=B4=AB=CB=CD=D0=C5=CF=A2=A3=BF=D5=E2=D2=B2=
=BE=CD=CA=C7=D0=C5=B5=C0=C8=DD=C1=BF=CE=CA=CC=E2=A3=AC=D4=E7=D4=DA=B0=EB=B8=
=F6=B6=E0=CA=C0=BC=CD=D2=D4=C7=B0=A3=AC=B1=B4=B6=FB=CA=B5=D1=E9=CA=D2=A3=A8=
=D4=AD</SPAN>AT&amp;T<SPAN=20
lang=3DZH-CN>=B1=B4=B6=FB=CA=B5=D1=E9=CA=D2=A3=AC=CF=D6=C0=CA=D1=B6=B1=B4=
=B6=FB=CA=B5=D1=E9=CA=D2=A3=A9=B5=C4=CF=E3=C5=A9</SPAN>(Claude Elwood =
Shannon)<SPAN=20
lang=3DZH-CN>=B2=A9=CA=BF=BE=CD=D2=D1=BE=AD=BD=E2=B4=F0=D5=E2=B8=F6=CE=CA=
=CC=E2=A1=A3</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-INDENT: 0.25in; =
TEXT-JUSTIFY: inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">1948<SPAN=20
lang=3DZH-CN>=C4=EA=A3=AC=D4=DA=A1=B6=CD=A8=D0=C5=B5=C4=CA=FD=D1=A7=D4=AD=
=C0=ED=A1=B7</SPAN>(Mathematical Theory of Communication)<SPAN=20
lang=3DZH-CN>=D2=BB=CE=C4=D6=D0=A3=AC=CF=E3=C5=A9=B2=A9=CA=BF=CC=E1=B3=F6=
=C1=CB=D6=F8=C3=FB=B5=C4=CF=E3=C5=A9=B6=A8=C0=ED=A3=AC=CE=AA=C8=CB=C3=C7=BD=
=F1=CC=EC=CD=A8=D0=C5=B5=C4=B7=A2=D5=B9=B5=E6=B6=A8=C1=CB=BC=E1=CA=B5=B5=C4=
=C0=ED=C2=DB=BB=F9=B4=A1=A1=A3</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-INDENT: 22.5pt; =
TEXT-JUSTIFY: inter-ideograph"><SPAN=20
lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=CF=E3=C5=A9=B6=A8=C0=ED=D6=B8=B3=F6=A3=AC=D4=DA=D4=EB=C9=F9=D3=EB=
=D0=C5=BA=C5=B6=C0=C1=A2=B5=C4=B8=DF=CB=B9=B0=D7=D4=EB=D0=C5=B5=C0=D6=D0=A3=
=AC=BC=D9=C9=E8=D0=C5=BA=C5=B5=C4=B9=A6=C2=CA=CE=AA</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">S<SPAN=20
lang=3DZH-CN>=A3=AC=D4=EB=C9=F9=B9=A6=C2=CA=CE=AA</SPAN>N<SPAN =
lang=3DZH-CN>=A3=AC=D0=C5=B5=C0=CD=A8=C6=B5=B4=F8=BF=ED=CE=AA</SPAN>W(Hz)=
<SPAN=20
lang=3DZH-CN>=A3=AC=D4=F2=B8=C3=D0=C5=B5=C0=B5=C4=D0=C5=B5=C0=C8=DD=C1=BF=
</SPAN>C<SPAN lang=3DZH-CN>=D3=D0</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></SPAN></P>
<P align=3Dcenter class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: center"><SUB><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><!--[if gte vml 1]><v:shape=20
id=3D_x0000_i1027 style=3D"HEIGHT: 30.75pt; WIDTH: 129pt" o:ole=3D"" =
type =3D=20
"#_x0000_t75" coordsize =3D "21600,21600" fillcolor =3D =
"winColor(17)"><v:imagedata=20
o:title=3D"" src =3D=20
"./15_XingBengBo_bandwidth_files/image005.wmz"></v:imagedata></v:shape><!=
[endif]--><![if !vml]><img border=3D0 width=3D172 height=3D41
src=3D"./15_XingBengBo_bandwidth_files/image006.gif" =
v:shapes=3D"_x0000_i1027"><![endif]><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" =
ShapeID=3D"_x0000_i1027"
  DrawAspect=3D"Content" ObjectID=3D"_1093089187">
 </o:OLEObject>
</xml><![endif]--></SPAN></SUB><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><SPAN=20
style=3D"mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
</SPAN>(1)<o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=D5=E2=BE=CD=CA=C7=CF=E3=C5=A9=D0=C5=B5=C0=C8=DD=C1=BF=B9=AB=CA=BD=
=A1=A3=B4=D3=B9=AB=CA=BD</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">(1)<SPAN=20
lang=3DZH-CN>=D6=D0=CE=D2=C3=C7=BF=C9=D2=D4=BF=B4=B3=F6=A3=AC=D4=DA=CC=D8=
=B6=A8=B4=F8=BF=ED=A3=A8</SPAN>W<SPAN =
lang=3DZH-CN>=A3=A9=BA=CD=CC=D8=B6=A8=D0=C5=D4=EB=B1=C8</SPAN>(S/N)<SPAN =

lang=3DZH-CN>=B5=C4=D0=C5=B5=C0=D6=D0=B4=AB=CB=CD=D0=C5=CF=A2=B5=C4=CB=D9=
=C2=CA=CA=C7=D2=BB=B6=A8=B5=C4=A1=A3=D3=C9=D0=C5=B5=C0=C8=DD=C1=BF=B9=AB=CA=
=BD=BB=B9=BF=C9=B5=C3=B3=F6=D2=D4=CF=C2=BD=E1=C2=DB=A3=BA</SPAN><o:p></o:=
p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; TEXT-ALIGN: justify; TEXT-JUSTIFY: =
inter-ideograph"><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'"><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; MARGIN-LEFT: 0.5in; TEXT-ALIGN: justify; =
TEXT-INDENT: -0.25in; TEXT-JUSTIFY: inter-ideograph; mso-list: l1 level1 =
lfo6; tab-stops: list .5in"><![if !supportLists]><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">(1)<SPAN=20
style=3D"FONT: 7pt 'Times New Roman'">&nbsp; =
</SPAN></SPAN><![endif]><SPAN=20
lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=CC=E1=B8=DF=D0=C5=BA=C5</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">S<SPAN=20
lang=3DZH-CN>=D3=EB=D4=EB=C9=F9</SPAN>N<SPAN=20
lang=3DZH-CN>=B9=A6=C2=CA=D6=AE=B1=C8=A3=AC=BF=C9=D2=D4=D4=F6=BC=D3=D0=C5=
=B5=C0=C8=DD=C1=BF=A1=A3</SPAN><o:p></o:p></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 125%; MARGIN-LEFT: 0.5in; TEXT-ALIGN: justify; =
TEXT-INDENT: -0.25in; TEXT-JUSTIFY: inter-ideograph; mso-list: l1 level1 =
lfo6; tab-stops: list .5in"><![if !supportLists]><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">(2)<SPAN=20
style=3D"FONT: 7pt 'Times New Roman'">&nbsp; =
</SPAN></SPAN><![endif]><SPAN=20
lang=3DZH-CN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">=B5=B1=D0=C5=B5=C0=D6=D0=D4=EB=C9=F9=B9=A6=C2=CA</SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">N</SPAN><SPAN=20
style=3D"FONT-FAMILY: Wingdings; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Wingdings"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Wingdings">=A8=A4</SPAN></SPAN><SPAN=20
style=3D"FONT-FAMILY: SimSun; mso-hansi-font-family: 'Times New =
Roman'">0<SPAN=20
lang=3DZH-CN>=CA=B1=A3=AC=D0=C5=B5=C0=C8=DD=C1=BF</SPAN>C</SPAN><SPAN=20
style=3D"FONT-FAMILY: Wingdings; mso-ascii-font-family: SimSun; =
mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; =
mso-symbol-font-family: Wingdings"><SPAN=20
style=3D"mso-char-type: symbol; mso-symbol-font-family: =
Wingdings">=A8=A4</SPAN></SPAN><SPAN=20