???2??????????16?? ??????????????,????,?????????????
???????????????????????:????
??????????????2000?????
?????????????????????
??:??????????
??????0.7%???0.8%
?????????FOX???????????
????3???????
???????:????????“???”
?????????????????????
????????????16??????
?????????,??????????40??
??????????????2000?????
??????10???6????4??????
??????????????????????
?????????????????????
???????????????????????
?????????,??????????40??
??:????1??????????????
???????????10????????
??2???????0.8%??????
???????????????????
??????????????????????
?????????,??????????40??
ISM??????????????
???????4???????????????
????????????????????