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

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

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

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

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

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

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

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

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