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

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

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

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

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