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

??

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

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

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

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

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

?????????

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

????????