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

2????????

3????????

4??????

5???667????

???11?27???????????????????? (????????????????? ?????????????????????)?27???,???????????????????,???????????,???????

?????????????,?????????(?)?????????????????????

??20????????????,?????????????11??????????????????22?,??70??,??????????6?????????????

????????300???????,???8.6%??????????????????8.7%??,?????????????????????,??(??) ??????????:?????????????????????