????:1???????vx:??????

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