?????????????????,??????????4000??????,????400????????

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

????? ?????????:??????????????12???????????????????????????2.5?????????????,??170??????????????,????????????“??”,??????,???,?????????????

???????? ???????????:?????,?,???????????????170?,??????????????????,????,?,?????????600???????????,???????????

????????????,??????,????????,????????????????(????????)

????????:????? “???????????”????

?? ??????4000????? ??“????”?

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

2???????

3????????????

4??????

5?????????

?????????????????,??????????4000??????,????400????????

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

????? ?????????:??????????????12???????????????????????????2.5?????????????,??170??????????????,????????????“??”,??????,???,?????????????

???????? ???????????:?????,?,???????????????170?,??????????????????,????,?,?????????600???????????,???????????

????????????,??????,????????,????????????????(????????)

????????:?????