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

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