?????????25??,?“??????????”????????????470?????,??????????80%????

???,?????1999???????470.2???????????????,??????????????????????????????????????,???????,???100%???,????????????????????????????????????

??1??????????????,??5000??,???????99%?

(????????? ??? ??????)

?????????????????????:????? “??????”????

?? ????????25?? ??????80%????

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

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

3?????

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

5??????????

?????????25??,?“??????????”????????????470?????,??????????80%????

???,?????1999???????470.2???????????????,??????????????????????????????????????,???????,???100%???,????????????????????????????????????

??1??????????????,??5000??,???????99%?

(????????? ??? ??????)

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