????:1?300?2?????:??????

2???????

3???????

4???????

5????????????

???1???3?????????????????? (??? ?????? ?????)?????????3?????????????????

???,?????????????????????????????,?????????????????????????????????????????????,????????“????”??“??????”,??????????????

??15??,????????????????????????????????????

???????????10??,????10?????????“??”???,??????????????????,????“???????”???

????,??????6.2??????,???????????????????????,????????????550????????????????,???????????????

?,???????????,??????????????????????,????170????,?????????

??,??????,??????????????,???????????????????????160??????????????,??5????,?????6????????????????????,????10????,?????????????????20%?(?????????) ????????????:??????