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

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

???г????е??????????????——

1?????飺15%??????15%?????15%????

2??????30%??????5%?????10%???????

3???????25%????20%????

?????θ??o?????????????????????

?????????????????2?????棺

1?????????????????????

2??????????????(???г???????)?????????

???????????140????????

??????????￡?

?????????120%????????o?????????(5%+1150*5/140) =46% ??????84%

???飺?????120%????????o?????????(15%+1050*5/140) =52% ??????68%

??????????￡???100?????????????120%????

?????????120%????????o?????????(5%+1150*5/100) =62.5%

???飺?????120%????????o?????????(15%+1050*5/100) =67.5%

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

?????????????40407??????????http://audiogearreviews.com/sxd/

?????α?????????