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

2?????600?????

3?????

4?????????

5???????

???????????8??8???(???? ?????)????8??7????,7??,?????(??????????????????????????????)??????????,??98%,??????42%?????????

???????????,7???????????3.3??????,???????;??7????????????5000???????????????

????,7?????4.2????????,???????????????17%??,????4??4????????????????,?????????,???????????????

????,????????????????7??????2.5??????,??24%???,?????????????????????????????,?????????7???????

???,??????,????,???,?????,???????“???????”???????????????????(????????) ???:???????????