???:??????
???????(?)“??”“??”“??”????…
????3???????7.2%
???????????????????????
???COS??????????:?????
?????????10?????10????
????????????:????????
??????????????????????
???????????????????
????????????:???????
?????????10?????10????
??????0.7%???0.8%
?????????????????????
????????:????????????
??????????172?4.9???36.7?
????????????:????????????
?????????????????????
?????????10?????10????
??????????????????
??????????????12???
???COS??????????:?????
????????????????????!
?????????????????????
??????????????2000?????
??????????????2000?????
?????????????????????