2????20????,???,??,????????,??,???????????????,?????????????????,???????????????????????1???????????????,???????????58?,??50???????????????????????,???????????(? ?? ???? ? ??????????????????:????)
??:????
????????23????2???????
??:????????????
??????:??2??6??????????
??????????????????
??????????????????????
????????????:?????
??:??????????
????3???????
??????????????????
????????10?50????????
ISM??????????????
??3?????!??????????
??????????????????????
???????(?)“??”“??”“??”????…
??????:B?????????????
?????????????????????
??????????????3??????
?????????FOX???????????
????????????:?????????
??:??????????????
?????????????????“??”
?????????????15?????
????3???????7.2%
?????????????????????
??????0.7%???0.8%