?21???????????? ????????????

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21???????????,?????????????????????????????????????,?????????????,?????????,????21??????????????????????

9?24????????????????????????????28?????????????,?21?????????????????,??????????,?????????????????15???,??????????????????????

???,??????????10????????????,???????????2.3?????,??????????????

?????8???,??????????????2441.3??,??21.8%,?52.6%,??????

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?21???????????????,???,???????????,???

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????????????????,???,?,????2100????,???????????????????9???,???????????,?????????3.1??????,???6500??????????,?,?????????????2?????????

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