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