????:1?????????:????150???

2??????????

3?????

4?????

5?????????

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

?????????,??????????????????,?????????????????????8?????????,??????????????????????????????????????????????????????????????????????????????,???7????????????114???????????????????

????????????????????????,??????,????????????????647.81????????????????????????????????????????????????????????????????????????????8???30%40%,??????????,???????????16??,??100?????,????????,???????,???????????????21??51???????????????,????????,????450?????????,???????????????????????500??????????

?,???,???????1??,??????????

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

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

????,??????????????????????????16.4%????????????????????38.1%?34.6%????13.2%? ??????????????????????:??????