??
???????????2?7??? ?????????????:??,??,??????????6??????????????
???????????????,??6????,??1??????26????????????????????,?????????????????????6000?????????,5??????????,???????5.2?????????????????,????????????6??,?????7?????????????????????4.0?????
????????,??????,????????????????6?,?????????????3?3?????
?,????????????????20000??????????,?????????340????????????????,????????????????????????11000???,??????????
????????????,????????????????????????,?????????,???6??????(???) ???????:?????
?????????
????????????????????????????????????