????:1???????:??????

2???500???4???

3?????

4??????

5??????

??1???????????????????2?? (? ??????????????????????????????? ?????)?2?????????????????,???4.8?????????????,????,???

??,1??2?10?????????1?????????,?????4.8?????????????,?10??

????????????????,?,??????????????????????,???????????????????????????????,?????

??????????105???20????,?????????????????2??4??????????440??????????86??13????????(?????????) ?????????:?????????????????