???????????????????????????????;
?????????????????????????????????100?? ?????????è???????????嶾????????? ??ü??????10%
??????????????????????????????????300?? ??????????????β???????ˉ ??ü??????1%
?????????????????????????????????500?? ????????????????? ??ü??????0.1%
??????????????????????????????????1000??????????????????1?? ??????????? ??ü??????0.01%
?м???????????????????????????????1500??????????????????2?? ??????????? ??ü??????0.001%
?????????????????????????????????2000??????????????????3?? ??????????? ??ü??????0.0001%
??????￡??????ó?????????????????????????????????????? ???????С?ɡ???β?? ??ü??????5%
??????￡??????ó????????﹥???????????????????????????? ?????????è??????β?? ??ü??????5%
???????????ˉ????????????????? ?????????β?? ??ü??????5%
????????????????????????????????????????40407???????40407????????
