????????,???????????????????????????????????????9 ??? 20 ?????????,“????????????”???500?,????76%?

??????,???????????????9?,????????2.5?????,12???????10???????,???????????????????,?????????????????

?5.6?????????,??2012??,??,????????????????????

(????????????????????????? ?? ??? ?????????????? ??? ????? ???? ??? ?? ??????????????????????????????? ????????? ??? ????? ?????????) ?????????????:??? “??????sn”????

?? ??????????????????????:??????500???

????:1???????sn:??????????

2???????

3????????

4??????????

5?????

????????,???????????????????????????????????????9 ??? 20 ?????????,“????????????”???500?,????76%?

??????,???????????????9?,????????2.5?????,12???????10???????,???????????????????,?????????????????

?5.6?????????,??2012??,??,????????????????????

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