??????????????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%,??

??,??,??,???????????????,?,??????????(????)