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

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

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

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

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

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