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