????:1?????500???????:???????

2??????????

3???????

4???????

5???????

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

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

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

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

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

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

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