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

2??????

3?????qq??

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

5???????

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

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

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

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

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