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