??????????????????

?????????2????7??????? ????????????:???,????????????,??????????6??

???,?6????,?1????26?????,???????????????????????????????6000?????????,5??,???????????5.2??????,???6???,??????7???4.0?????????

?????????????????,??????????????????????????,???????????????????????????????????????6??,???3?????????????3??????????

?,??????????20000??,???340????????,?????11000?,?????????????????????????

?,?????????????????????????????????????,???????????????????,??????6??????????????(????) ????:????????????