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

2?????????

3??????

4????????spa

5?51?????

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

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

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

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