?? ???“?????????????”
????:1????????:?????100???
2???????
3???????
4???sn
5??????????
?????(??????????????):????????11??????????25????,“???????????”??,??,??????????????
??,????????????“??”??????,“????”?????????12.41%????13.84%,61%??,???“???????????????????????”??300????????????
??,“?”????320???????,????287??,???????,????????????????????????,??????????????????????????????????????????“??”??????????,“?????”??5700?????????????
??????????:???