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??R4???????,????21.3??????,??5????????,??,???

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2???????????

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5???????

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???????????,???????????????,??10??(?)???????177.4??????????????????????17???????????6??????????????????????????????,??19???R4???

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6????????????6?????????,??2.1???,???,??????????????????????,???????????????

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19?????????????,?????,??????????????24.2????????????????????,??????????8????????????19????????????,???,???????

??R4???????,????21.3??????,??5????????,??,???

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