????????Online???????????????????г?
??????????????????δ????????2011-06-17 14:28:31
??????????????????????????y??????н?????????????????????????????????????????
?????????“????”——“?????г?”???????????????
?????г????????
??????????????8??????12??????12?????г???????????????????0???????μ???С?
??????????????????????????????????????????????????У??? ????????????????????????У????λ??У??????????????
?????????賿0??--????8????м?????? ??8??????δ????????Ч??С?????8??????12????????????? (????Ч?????????)??
?? ?? ???????????????????????????5%???????????????????????????15%??????????????????????,?????????????????????????
????????δ?????????????“??????”?г????????????????
???????:??????????????????40407?????????????40407???????????α? ????????
????????????????????????????????????????40407???????40407????????
