??′??-?????????é￠?è???§??????°?????°????°±è￠?è???§???±??????????o2?o??????￡???
a??è???§????è????a?o??????o????μ·??????è??é????′??′é???o?30%?????′??′30%??????a??
è|???￥é?????a??????μ·a???????o????°??????????????1??·2????2?????1???°??¨??·?o????
???è?3??¤è?1??????????????????????????a??ˉ10%???
a?????????????????????????￡è¨?è′1?1?????????¨?o???????????°±è???????o??????é?￡è?1é????￥è°????????o????????????§??ˉ???????????|??o??￥????¤§?????????a??
è???§??????￥????-??????????é￡?é￡?????????°?|?????o????
é￠?è???§?????o???????è?￡??????????¤????????????ˉ??¤é?????
??ˉ?????°?????ˉ??¤é?¨??￡????°±???è§??????a?????3???è§?????oo???
é￠?è???§?é?????è???-￥?????????é?￠????????·?oo?·??·????é?????a?????è?????????1???¨è??é?????a??
a??è???§????a??
????¤??????????????o????é??é￠¤????????￡???a???????ˉ?????ˉ????°±è?¤??o????o????a??
?|????èˉ′????¤??????????è????????????????￥?1????é?￡?1???¨???è§?é￠?è???§??ˉ1???????o|???é?￡????????????????????????è?¤???
é￠?è???§?????°±è?¤??o?o?????°±??ˉa?????é￡?????¤?a???????￥é????????????????¨??????é??????????????
?1?????????????????????o?o???????é?¨?°??￥1??¨??????
???????????????é??è￠??￥1?°????????o????
é￠?è???§??2?é????????????·??·????????o?è§??o????
a?????????????????è???????¨èˉ′????1????a??
?￥1èˉ′???è|?èμ°?????′è￠?????¤?????′§?′§???????o????è?????
????¤?????·±?·±????o???￡?°????a?????èˉ′????????ˉ???é￡?????¤???????????°±??￥é???o??ˉ1????ˉ1????????o????1???????èˉ???????a??
a???|?????????￥é????ˉ???????????????é?￡?1??????????????????????é?¨??a??ˉ??o?o?a?|a?|a??
èˉ???°???????????′è￠?é￠?è???§??????-???
?￥1??????????¤??????????è?a?·±??????????￡°é?3è??é￡?é￡???′??|???é????????
a?????è?????è°¨è¨????è???????°??¨????????????é?¨?????ˉ?¤§???cp???a??