????:1?51????????:????

2???????

3?????????

4????????????

5???????

????????????2????????????14????????????????????? (?????????? ??)??????????????14????????,??2??8?,?????????????????50????13?????,?5.3?????????,??????????????75%?

????? ???

????????????,????????,??????????

?????,????????????????????770?,?????1????10???????????????????1??????????????22.5?6??????,????????????????????????,?????????????

????????,???????????????,???,????,??

???,???????????????“????????”????“????”????????????????????????

??????,????????????????3?,??????????7500?????,???95%??,???????

????,???????????96.8%,????????2.2%,??????1%,????????????

??,????????,???,?????????????????????????????????,??,?????????(??????????)

??????:????