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

2???????

3???????????

4?????200??

5????????200????

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

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

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

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