????:1???????sn:????????wx

2????????

3???????????

4??????????

5?????????????

???????6???????????17???????????? (?????????????? ??????)5????,??

??????????????????17????????,5????????????????,????????????????????70????????????????,???

????????,????????????????,5??,????0.7%,??0.1????????????????0.7%????0.8%,???????0.2??????

????,????1.2%,???????0.1?????????????????????????????1.0%,????????????????0.1????0.9%,???

??????????????,5??,??“??????????????????”????,?????70??????????????????,???????;????????????????????,??,????

58??????????????????,?,6?????????(???????) ?????????????:???