???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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