????:1????????:????????

2???????????

3?????????

4??????

5?????

??8???7?????7??8??7??,??,????????????,????????,???????????????,??1617????(?1980???)??????,??????0.1~99.7??,??3????:??(99.7?)??(80.5?)???????????(77.3??)???50??????????????????????????????????????????????????????????????

??,????,????,????,????????????????????????????????,???,???

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