????????

1221??人??????飬?????油???27???3???????л?????????ɡ

???????????Ч????????1??21????????????????????

??????У????????42.27%?38.8%и???????39.3%46.6%??????

?????????貿??7???????齨裻????????????????y幤??????????4945??????????????

???????????????Ч??13?103??????????????101???251??????γɡ

?????????Ч???99%??????????99%??壨??γ??????鲼3???

??????????????4????30??????5???????15??壨??11?ɡ?????????????????????????????100?1000??????????йд?

???У???????????????????????????й?????е????????1??????????д???Ч????58%????65%?壨???? ?

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