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

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