????:1?????????????:???????100???

2???????

3???????

4?????

5?????600?????

???????2???2?? ????(BBC)?????????,??????????2??????????1??????????,?????????????,?25%?,????????????????

???,???????????,????1550????????25%???????????????????300?????2?????4??????????,1250????????????21???

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

??,??????????????????????????????????????,??????25%???,????????10%?

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