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

2???????????????

3??????

4??????

5???????

?????(12??????????????)??,???????4??,?????????????,??,?????????????????????????????

????????11???????????,???????1.4?????????????????4000??????;

??????????????1.4?,????9000????????9.3??,???3.5?;

?????2700??????,???????????????(??????)???????1000?;

????2400?????????????6000???

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

(?? ?? ??????) ???????:?????