??????????????
??
- ī????????????????????Щ??
??
- ????ī??????????????????
????????γ?? ??????10???￡??????????5.5???д??????5.5????????????70%??????????????65%??
????????γ????????8???￡??????????6.0?????????????????5.5?????????????75%????????????70%??
????????γ????15???￡??????????5.0?????????????????5.0?????????????65%????????????60%??