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

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%,???????????????,?????????(?????) ?????:????