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

2?7????,????????A????????,????????????

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

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

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

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

(????? ??????????????? ??? ???)

?????:?????