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

2???????

3??????9598

4???????????

5???????????

??????????????????????11?????30??????? (????????????????? ??)?????30??,11?????50%,??????0.2?????????????????????,???6????50%???????????????,????????????????????

????????,??,????????0.3????0.9?;????;??????????????????????????????????

?,11?????,???????????????50%,??????????????????????,??????????,??60%???????????????,??????;??52%????????????????,???????????;??????????????55%??????????????,??????????,????

??,????,??,??,???????????????????????????,??????????????11?????????????????????????,?????????????????,???????????(???????????) ????????????????:???