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