1????..............
????=2??-1??????+1??????...???????????2??
1??-2??????
????=2??-3??????+3??????...???????????6??
2????..............
????=2??-2??????+2??????...???????????4??
3??-1??????+1??????+2??????/2+1+1/1+2+1??????...???????????4??
????=3??-3??????+3??????+2??????/2+3=3/3+2+3??????...???????????8??
2??-4??????+4??????...???????????8??
?:???????????????? ss???????????? ????
?????ù??????
???????????л????????...
??????????
?????????????????!?????????!
??????????????
??????????????<???????>???????????!
???????????????????????????????????????????
??????????????????????????!
??????????????????
?κε?????????????...????????????!
?????????????!????????????100%????????!????????????????????????!
?????????????????~~
??????????“???”
?????????“???”
??????????“???”
??=??t??飬????=??????????=??y????????=??????
?:???????????????????????????!?????????????????!
??????????????
?????????...??????????????????????!
???................
??????????????
???????????????...?????????????????Щ??!
1??????????????????????????????????????????????????????????????:???????????????????????????????????????????????ι????????????????????????????????!
2?????????????????????????????????????????????????????????......
???5000??????!
???????????м?30%?????????!!
?????
??????????????????ο??????
???С??????????8-10????(?????????????Э???????????)
??????????????????????滮??~??????????!!
1??3????????????54???!!!
1??4????????????72???!!!
????????о??
????60???????3???????...
????????????????????к???????????????????...??????????????????????
???????????????...???????????..
30??????=1????
10??????=1????
??ж????????<???><??><????>?о???????...
????:
????о????20w????о?1??30????
???о????15??????о?1??10??
?????о????30??????о?1??5??
???3??????????2??????!
?????????
4??????п??????
3-4???????????????????????(4?????)~?????????????!