?????

????????????????????????????C??10-30??????600????????????????????????,?n?????????.??????????????????
1)???15???1?????
(2)??1000??????????1?????????102???
(3)????100???????5102?????
(4)???500?????????200???????????????????????
(5)?????????
(6)30?5???100??????????
???^???????????????????

??????????...

?
(1)?n??????????????
(2)???????????????????????.
(3)???????(?????)???????.
(4)??????????
(5)?????????.

??:
1.????????????????
2.????????? 8 ?????????
3.??????????????????????????????????????
4.?????????????????
5.B ???B ???????????????
6.???????????????????
???????????????
?????????????
??????????...

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

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


?:

1???2????????????1-33??????4??????????????????5??????????????6?????????7??

:
1??????????????????????9??6?6?30?
??????

2???????????????
?15?9?9?12??6??9?10?9?
?9?9?9??10?
????

3?...

???????????????????????????????????????????
???
????????????
??????????
?????????????
????????
????????????????????????????????????????????????????????????????????????
???
?123??????23????200300???1????????502??10?2104010?1050

?260??30???????

?360?6???2??????

?4150250?????1????

?5????...

?????,??,???,????????,n????.
?????

????\\?.

?n??,???.


?


[?]
?????????2--3k???
?????
[]
?1--2??????1--2?
????
[]
?15?30????????2
??
[]
30?15???????????????
??????
[]
??????????
????
[]
4????
???
[]
??????????R2--3k?...