?佫??????????????????佫????????????
??????????????????????????????????????[????]?У?“???”??“????”??????ο??????
??????????[????]?е?“???”??“???”??????ο??????? ??“???”?У?“????”??“????”??“????”??????ο??????????????????????????
???Σ?????[????]?е?“???”??“????”??????ο??????
????????????佫???????????????????????????????????佫?????? 60 ?? ?? 2?????佫??????????60*(9+2)/10=6 ?? ????????ж?? 66 ?? ?????? ???????????
???????????100,?佫????????????????????????????,???????????30????? ???佫????????????κ?????
????????????????????????????????????????40407???????40407????????
