????????2????????14????????????????? (?????? ?????)????????????14??????,???2?8????????????,????50????13?,????????5.3???????????????,???????????????????75%?

????? ???????????????????????

?????????????????????,???????????????????,???????????

????????????,???????????770?????,??????????1?????????10????????1?????????????22.5??6????????????????????,???????????,????????????

???????????????,???????????????????,????????,????,??????????

??????????,?“???”??????????“????????”???????????????

???,????????3??,??7500?,?????95%??????,?????????????

??????,??96.8%,????????2.2%,???1%,??

?????,??????????????,????,???????,???,??????????(?????)

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