?? @??????? ?????
????:1??????????????:??????
2????????
3???????
4???????
5???????????
???????2??,??????????????????
?2??????????1???,????????????,?1.1?????????????????????,????????????,????????,?????????????
???,??????????2?????????1??2???????
2?????1???????????????,????,??????????????
2?,??????,?????????????????,??????????????
2?10??????????????5???????????????????,??????,??????
?,???,??????????,??
???????????2?????????????????15???????,??????????-4.8?????????,2?,2???????????
????????:????????????????