????:1??????No1????:???????????

2?????????

3?????100????

4???????????

5?????vx

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

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

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

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

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

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