??

?????????k????????????????
???????????????????????????????????????????????????
?
?????? ?????????????????12 ?????????????????60%??????

??????????
??1?
2????
?????????
???????
????1???
??????,?????????????,???,???,,???^

??:

(?) :????????,,????? ???????,???,???,???????(,,??,,),?,,??

() ?: ??????

() ??: ????(???,?)????,???

() : ???,?????(?),N???,?

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

??50??20????????????????????

??...

?,
?,,?C?,?,?,??

???
??
??????????????????????????????????????
???
?
??????????????????G????????c
?
?????
?
??????????????????
?c
?c??????????c???????$00?c?????c??
?c?????????C?

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

???2?

????????

?,?~L?! ?,,??~?}?!

A~:????2???,,,????????????

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

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

??????????

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

??~???,~~???!

???????]?,@????!
?:
?????:???????????????~?????????????

????
10???15??
????~????????????

?????
100?50????1000?10?30??????.


??:
...