????:1???3??400???????:????vx

2????????

3??????????

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

5???????

??????9?27???????????? (?????????????? ??????????)????27??????,????,????41?????

?????????????????????????????????????????,??????50%??,??????35%,?5???

??????,?,????,???????????????

????????????????,?????????,??????????,???????????????????23???????,??????????????56.1%;?????10?,??24.3%;??????????????4?,????????9.8%?

????,?,??,??41?????????,????22??????,???????????????54%;??15??????????????,????????????36%;????2?,?5%;????2??????,??5%?

?,??,????????????????A????????????????????????????????????????????????????????????,???

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