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

2????????

3???????????

4??????

5?????????????

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

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

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

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