?????

??????????Ｐ?????????????????????й???ι???????????

?????

???????????????У??е??????????????????????????塣????????????????????????Э???????ξe

?????μ?λ???ì?仯?????й????ì???????????ì??ж?μ???Σ???????Ρ?塢????????ú???ì?仯???????????????

??????????????????й?????????????????????????á????еì?????е????????á???????????淶Ч??

??г?á÷???Ч??????????潨С??潨?????????????Σ????????????y??гЧ?л?ж?????????г?ù?1?ù?λ÷???λ???λ?÷??÷??Ч???

??????

??????????й???????Эò???γ??????????????????????Ч?е???????????????Χ????Эú????裬???????е??????ū?????????????Ч???Ч????γ???????????????1????ú?????????????ι???????????淶?????

???????????????????????顣??????????????????????????????г?????????????Э??·???????úá?????????????Σ????oЧ????г?淶??????????淶????????+??????????????

????÷?????????Щ????Ч???????ù???о?????????綨??á??????????????????Щ?????Чн?·????????????????滮??桢?淶??????к???????????????????Щ?Щ???????Ч???飬?????????????γ????????????????3?????

??λ????й???λ?塣?????????壬????λ?????Ч?????????????????·?????????λ????λ?????·??Ч??1???λ?л???λ???С??λ??????????????????óЧ????λ???????????Ρ??????????

????????

?????????λ???????????Χ??????迪????????е???????ж????????????￡???????????????????????

й??????????????????й?·飬к??????????????????????е????Ч?????????????????????????

???????Э????????ν????Э?ν??????????????????

???????????????????????壻??????????????????????????????????

???????????????漰????????????θ?У?????桢?????漰??????棬???????????????

??????Σ

??