??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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