?

   ?????????????????????????????
   ???????????????????
   ???????????????????????????
   ?????????^???????????????????????????
   ????,????,?????????
   ??  ?

???????????

????
1? ?????6?2???

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

???????

2??? ?????????

??????????

3? ???????????????

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

??????????

4?

1???????????5?

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



2?????????160 ~200??2~3?

???5~6????10%?????100~150???

??
??????30?1500??100?5?5?5?20?20??20?5?3000??...

???????????????????????????
????????????????????????????????????????
??????
??????????????k??????????A???????
??35????2-3??
????8????????
??????????????
??????
???????????????
??????????????????????????
???????????300??o????????????????a
?????????????????????(??? ~~???????????????aa???~ O(_)O?



...

?,.?.?????,?,??,???.


?,.?.?????,?,??,???.
????????????????????

??????????????????????????????30??????? ? (1)????100?1?150????????1???? (2)????(?)1?150?1?????1????? (3)???(???)1000??8000 3??????P? 10?15??2????????????? (4)??]?9??30?]????????? 13?1????? (5)????9???60???????130???? (6)??15?9??6??????????? 130??? (7)????100?60?9?3?????????12?7????? (8)?30????100???...