?? ???????!30??????????????
????:1???????:???????
2???24????
3???????
4?????????
5?????
?!???
1?30???,??????,??????30%?17.1%,???????,????????????,????????
??,????????,???????????????,?????????????????????????????????????????,?????????,???:
????,???????????
??????????????,???????,???????????,?????
?,??????????????????,???????????????,??????,???????????????“????????????????????????????????”?
?,1??????30????????2?????????2?????,???????????????????,???????????????????????????????????????????,?????????????????????????????????,??????????,????????????????“??????????????????????”,????????????????,??????????
(?????????? ????) ?????:??