?? ??????????????!30???????
????:1?????300?3??????:????????
2??????95?
3????????????
4??????
5?????????
????!????????
1????30??????????,??????????????????,????30%?17.1%,???????,??????????????,????
?????????,??????????,??????,?????????????????????????????????????????????????????????,?????????,?????:
??????,?????????????
?????????,????????????????,???????????????????????,??
??????,???????????????,???????,????,??“????????????????????????????????”?
????,1?30????????2????????????2??????,????????????????????????????,??????????????????????????????????????????,??????????,?,???“?????????????????”,??????????????????,??????????
(?? ??) ??????:?????????