????

???????????????
????????
????????????????

???

???????????????????

????????????????????????????????????????????????????
?????????????????????????????????

??

???????????????????

????????????????????????????????

??

???????????????????????????????
??????????????????

??

????????????...

??????????????????????
??   2009-07-31 10:19 ???
???   2009-07-31 10:26 ????????????????????????????????

??????????????????????????????????
?.
???

???~~????
????
?
? ???? ???? ????
??????? ?????
???
?????????????????????????1999?148????????????????
?????????2000??????????????????????100????1971??????
????????????????????????10~20???30????????????????
35~45?
??????????
???????????????????
???????22?????

?????,???????,????.????,?,??,??,???,???????,.????,,,?????.???,???.?,?,?,,???.????,0.5%??0.5%?,0.1%???.
???????t?????????
??????????????????/???????^
??
?????????????????
1.?? 0.1%?0.5%??????36????????????10%30%??0.25%0.5%????????13????35???24???????????????
2.? ?????????????710??????1??24??????
3...