?? ?????????:??1550????????25%????
????:1???95?98???:??????
2??????????
3???9598?
4??????????????
5????????????
?????????????2??????????2??????? ????(BBC)??????????,?????2??1???,???????????????,????25%?,?????????????
?,???,?1550????????????????25%?????????????????300??2??????????4??,1250???21????
?????????,???,???????????
????????,????????,???????25%???????,??????????????10%?
??,?,???????????????,??????????? ???:???????????????????????????????????????