????:1??????:????300?

2?????????

3?????????????

4?????wx

5???????????????

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

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

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

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

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

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