10?18???????????????????11??????????????100????????????60%????????????????????5.5???

       ????????????????????????????�????�??????????????????????????????????????????11??????????????????11?11???????10?21?????11??????????????12????????????

       ???11??????????????????????????????????????????????????????????????????????????

??????????????33%???�90?�?48.5??�80?�????????????????????10%???????????????????????????????????????1000??????????????50%??????????????????40%?????????23%????????�?11�?????????????6048??????????????8.5%?