???????????2????????8?????????????????? ??????????,2?8??11???????????????????50???,??,????
??,????,???,?????????????????,??????????????????????????????,?????????????
????????????????345?101??8???????????????26??????????4?54?????????????????????(?????????????????)?????????45????22???(?)??????????
??:??
???????????????:?????????
????????????????:?????
??????????????????????
???????!??????20???????
??????????????????
?????????????????????
??:??????????????
????????????????????
??????0.7%???0.8%
??3?????!??????????
????????????????:?????
??????????????2000?????
???????????????????
?????????????????????
?????????????????“??”
?????????????????????
????????????????????
???????5?????:????????
??????????????????????
“???”?“???”,?????????????
?????????????????????
??????6.6???????10??
?????????12????????
???????????????????
????3???????