?? ???????? ?????????????
????:1???????:????????
2????????100??
3?????????????
4?????vx
5???????
????(?????):???,??,??,??????????,??????
??????????????,??????????3.1????????????????,?????????????????????????????14.7???????????????????????,??????????????????????????????????“????????????”??????????????,????6????????????,?????????????????????????????????11??????,??2??????,??????????????,??????????????,?????????????????????????
???????,???????????????????????,??????????????,????????????110??,??4.54??,??????????15.1%,????1????????????,???????????????????????????,?????1100????????????,????1300????,???990???
???:????