?? ???287.8??????????? ???5.7%
????:1??????????:?????????
2????????vx
3???????
4????????????
5??????????
???11??29?? (????? ??????????)?29???????????,?????????????1?????????10????,???????287.8????(????,????),??,???5.7%?
10??????????,??,?????????????????,??????????????????????????,?????????,???
???????????????,1?10?,????????,???????????????????????5.8%?????,?4.1%,???????,???????????1????????10?,????????????8.0%,?????????
1??10????????????,??11.3?????????????,?????????3.8%??????????????,???????????????????????????????????????????????????????????????????????????,?50%?????????,????????,????????????????,??????????
????,??,?????????????????????????????????,???,?????????????,?????????,????(??) ????????:????