???????,?????????????????,??????????1-10????
????????????????????? ??????1-10?????
?????????????????????????????????????????????????????????1-10????????????????
??????????1??2?????????30?????????????
??????????2??3?????????60?????????????
??????????3??4?????????140?????????????
??????????4??5?????????700-800?????????????
??????????5??6?????????1200-1300?????????????
??????????6??7?????????1700-1900?????????????
??????????7??8?????????3000?????????????
??????????8??9?????????5000-5200?????????????
??????????9??10?????????11000-13000?????????????
???????????????????????????? ??????1-10???????