???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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