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

2???98?????

3???????

4????????

5???????

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

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

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

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