???????10????????????????
???????????10???°?????????????????????????????????????????????????????????
??10?????????????У?????漰??8???????????????????????????????????30%???????0.8???????1??
????????????????????????????????????30%????????41%?????????????1??????Ρ?
????????????????????????????????????????????????
1????????
??12???????????
?????????1???179??????223
???o???1???252??????252
2???????????
????12??????????252???12????????????????12?????????????????????????????????????????
3???缶????粼??
13???粼???247???????????12?????????????13????С?????ì????????????С??????????????缶????????????????
4?????????
????????????????????????????Χ???У?11????????????????1????????12????????????2????????13????????????3????????
?????????ε??????????????????????????????????????????????????????
????????????????????е??????????′????????????????????????????????????????????????????????濼???????
PS??????????????????????????????????????????????????????????