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