????:1?????????3????:?????

2?????????????

3????????????

4???????

5???????

??2?17????????????????? ?????????????(???????????????????“???”)17?????,???37.7%??,?????????????2???????????????

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

??????,?????????????35??????,?5???????????????????,?????????,????????????????,??,??

????,????,??????(54.3%)???????,??????2????????????????,??????????????3.5?????????????????

??????????,???????????,????,????????(46.6%)?????????????

???“?????????????”?????,?????????,??????????12???????????????17?????????12.5%?18.4%,???????????????????????????????,???????????(????) ?????????:?????????????????????