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

2???300????????

3??????????

4????????

5???????????

?1???????????7?? (?? ???? ???)???????????7??????????????????????,???????????6.8??,???????????????????????????????????????????????????????2.2?????

??,1??????????????7????9?????????5???????????,????????????????????(??28.50??,???????????????87.45?????????)????????????6.8?,????????????????10?????????????,?????

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

????????????1500???????????????

??????????,???,?????????????????????????????2.2?,?????????????,?????????????????????(??) ?????:???