????:1?????SPA??:?????????

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