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

2???????100???

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

4??????????

5??????????

?8???????????????19????????(???)?????????«???????»??,???11?26??30??????????????18?????????????,?????100???,?????????500?????????????????,?????????????????

??,??30%???????????,??500??60%,???,?????

??????????????????,?????????????????60???????,??

???????????:??,???????????????????????????,????????100?????????????????????????

??????????,??,????????????????? ????????????????:????