??????????????????

???????

????????14??

??????棺

???????

???????????????????м???????μ?????????￡?

????????‘?????’

??50%???????2???????50%????1????????1?????;

????????‘???

??50%???????2???????50%???????1????????1??????;

????????‘????’

??75%???????2???????35%???????1????????1?????;

????????‘???’

??95%????????????????3?1??

?????x2 ???????70%

???x1???????x1???????20%

????x1?????10%

??5%???????1?????;

????????‘????’??????????

?????λ????????????п??????????????????????????????????????

??????????????п??????п?????????????

??????????????п?????????????????‘????’?????????????VIP??????棬???λ?????λ?????????????????????????;