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

2??????300?1????

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

4???????

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

??????6?21?????????(????????? ???????????????)6?????????????????19???????21????,???????«????»????????????,???

6??19???21???????????????????????????????,???????????????«??»?????????????(?????????????????????? ??)

???????«???»???????“????”????????,???????????????????????????2???????,???????,?????????????????87.7%?

????«?????»?????????????,????“???????????”??????????????,??,?????????????????,??????“?,?????????”????????????????

????????,?????????,??????,?;?????????????????????????????????????,??,???????

????????????????,???????????,????????????????????????????,?????

???,????“??????????????”?(?“???????????”??)?????(?????“???????????”?????????)??????????,??????????????????,??????,?????????????????????????????????????????,??“????”?(?)

????:????