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

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

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

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

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

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