?????????????????

????:???????????:??500??????

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

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

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

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

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

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