??????160??????????60?????????????????160?
?30% ???
??????????30%?????3k?????????????
????????????????????e???????
?????????????????5??30%??
??50~200?
???????????????????????????????????????????????50?110??????200??
????????2007??????????????????20??
???????????????????????????30%??????25%??????????
?????
???????????????30????????????
????????????????????????????????
??
?????????????
????????????????
?????k?????????????? ()
??
??