һӳˌƈWַ1Wψ" />
ӳˌƈWַʲô?ںkҽy(tng)һͬWϵWУվώָ
1Wψ
䛺ʡkҹپWע~̖Mɿϵy(tng)Ϣ־ԸϢ
2U{M
ύϢϵy(tng)ʾrgWU{M@ҪעUMrgroЧ
3F_JϢ
Ҏ(gu)ĕrgصĽTF_JϢҪǿWϢǷ`ˈYɼCϢָyϢƬϢ
1ԇĿ
ZWZ
ZI(y)n(I(y))
2ԇrg
10·wrgώ֪ͨ
3ȡ֔
ֶ͌450ȡ֔һ130ңÿI(y)һһ㶼150ĶпǰoҲÓͨ^ֻҪǰąӿǰoԇͨ^]І}
ӳ˸߿2007_ʼоWψe־˸߿WψW醾WȡϢr˸߿Wψһÿ8Ѯ9Ѯÿľwrg̶һe^Ҫٵһ!
ϳ˸߿WMӴβͬI(y)ͬWMҲͬwWM˜£
(-2.5)Ŀ1100—1300Ԫ/1200—1900Ԫ/;
t(y)W(3)2300Ԫ/;
Ӌϳ˸߿WMϔֳڌWƼ()ʷI(y)WM飺1100*2.5=2750Ԫt(y)WČI(y)tdz3()WԳ5˸߿WWM