?? ??????????????????????:??????500???
????:1????????:??????
2?????????
3????????????
4??????
5????????????
????,?????????9 ??? 20 ???,“???????????”????????????500????????,????????76%?
???????????????????????????????????????,?????????????????9?????,????????????????2.5?????????????,12????????????????????????????????10??,??????????????,?????
??5.6???????,??2012????,?????,????
(????????????????????????? ?? ??? ?? ?????? ?????? ?????????????? ?? ?? ??? ???? ?? ???????????????? ?????????) ??????????:???