?? ?????????? ???????????
????:1??????????:????
2???????????
3???????????
4??????????
5??????200??500
????????1?????????7??9??5?,???????????????????6.8??????????,???????????????,?????????????????,????,??
???,???????????????????,????????????????,???????????
??????????????3????????4???????????????????????????;?????????????????-171????,?;???????,???????????
1?????????????7??????4??????,???????86????????,??CA049???????????,?42?????????????????,??????????
????????7???,?????????????????170?,??25.6??????????
???:???????????