?? ??????????????????
????:1?????????:??????
2????????????
3???????????
4??????????
5???????????
???11??????????????????27?????????? (?? ?)?????????????????27?????????????????????,??,???,???????????
?????????????????????????????????,????????????????????????(??)??
??20???????????,??????????????????????11?????????????????22?,?????????70????????????,???6??
????????300???????????????????,??????8.6%????????????8.7%??,???????,??(?????) ????:?????????????????????