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

????,??????,??????,???????????????????????,?????????????80%?????????????????,??????96.6%,??????18.9??,????????,???

????,??????,????????????????25????,??????????41.3%????????21.2???????????,????????????????????14.9%???,????60.2%,??????8.4?????

???,???????????“??????????”?????????,????????????????????,????????????????????????????????????,????,???????????????????? ???:?????????????? “?????”????

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

????:1??????:??????

2??????50??

3??????????

4???????

5?????????

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

????,??????,??????,???????????????????????,?????????????80%?????????????????,??????96.6%,??????18.9??,????????,???

????,??????,????????????????25????,??????????41.3%????????21.2???????????,????????????????????14.9%???,????60.2%,??????8.4?????

???,???????????“??????????”?????????,????????????????????,????????????????????????????????????,????,???????????????????? ???:??????????????