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