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