??????????????5???

??

???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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