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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??????????????(?????????????) ????:?????