???????????????????

??????? ?? 51

?????? ?? 33??

???????? ???????Χ????????????1740???????????????????????????696??????

??????? ?? 20

?????? ?? 15??

???????? ?????????Χ???з???λ???951????????????????????Ч????????5??

??????? ?? 20

?????? ?? 20??

???????? ???????Χ??????????50%??????30%????? ????8??

??????? ?? 48

?????? ?? 26??

???????? ???????????????????????????????????0.5?????94????????????10??

????????

????????