????????????11??????????????25?? (???????????????)???????1?10???????,????17.5%,???????????????9.8???,?????????????????????????????????????????????,???

25???????????,??????????????“?????????????,??”????????????

???????????????????????????????? ?????????

???,???????????????????????????????????????????????????????????????????????????????????9???

???,????10??,??????,??????????????????????????????40%?21.2%?27%;?????????,?????????????37.6%,?????????????????????30.2%?15.4%???,???????6?,???19???,?????????

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

????1????????????10????,????20.1%,??????????????????13.5?????,???30???????????188.2?????????

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

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

?????????,“???????????,??????????,???????????,???”(????)

???????????????????:??? ??“???????”????

?? ???????????????

????:1????????:??????????

2?????vx

3???100???????

4?????????

5?????

????????????11??????????????25?? (???????????????)???????1?10???????,????17.5%,???????????????9.8???,?????????????????????????????????????????????,???

25???????????,??????????????“?????????????,??”????????????

???????????????????????????????? ?????????

???,???????????????????????????????????????????????????????????????????????????????????9???

???,????10??,??????,??????????????????????????????40%?21.2%?27%;?????????,?????????????37.6%,?????????????????????30.2%?15.4%???,???????6?,???19???,?????????

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

????1????????????10????,????20.1%,??????????????????13.5?????,???30???????????188.2?????????

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

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

?????????,“???????????,??????????,???????????,???”(????)

???????????????????:???