????????????2??????7????????????(??? ?)7??????????????????,????????????????????????????????????A?????,??

7????????,??????????????? ???? ???????

?????????????,??2???????40?????241????8??A????????????

?,??????1500??????????????????,????2???????????16????538???????“??,????,??,??”?????????????????????????,??????????????

?????,?????????????????????????????????,?????????????500?????1000????

??,?????500?;??????1000?????????;??????????????????????????????????1500????

?????????????:???????????

??

??:???????????,??????????,??????????????