????:1???????:???????

2????????????

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

4???????

5????????

??????? ?????????????????????

???6?????20???? (???? ?? ?)20???,?,??????

??????????(???????????????????????????,?????????????????),????????????????1??????????????????????3???????????????????????,???,??,????????95%?????????????????,???????????18????????

18???????????????????,??,????,????24???????????????????????????????80??,?????????????????1???????????????,??????????20????????,???12????????????????

“???????????,?5%????,???????20%30%?”????????????????,?,???????????????

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

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

“??????????,????????????????????????????????100????”???????,“??????”(????????????????)

??????:?????????