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