???????á??????????????????????
??????????????δ????????2011-03-21 16:44:52
????????????????????????????????????????Щ??????????????????????????????????????????????????????????????????????????????
???????
1-10???????????????С??????????磬???????????????С????????С? ?????????1???????????40??????1???????????????9????10????????????????????????????????
10?????????10????11????????????????????????????????????????????????????????????????????????????????С?????????????????2??????????????????????????????4??????????900?????????????????????1???1000?????50???????
????????
?????????3??????????444???????????????ɡ??????????
1. ?????30???1????????5??1???????????1?????????????????5????1????????5???1????????????????1?????????1??????????????????????????????4?Σ???????????????????ɡ?
2. ?????N?????1????????????????????1????????????????ɡ?
3. ?ú???棬?????????????5???7????????????5????4?????? ???????5?λ?????????433????6?????????????443???7????444??????????????4???????13%??15%??????????5??6??7????433??443??444???????????????????????á?
????3???????????????????????3????????N?????????????????????????3???
???????
??????????????????????????????????????????
???????:??????????????????40407?????????????40407???????????α? ????
88
0
?????
????????????????????????????????????????40407???????40407????????
