??????????12è??é?-?o???′???
?1??????￠???è???????????
è?????????-¤????1???￡??¨?o??????°???
?￥1?????￥?2??????3è?????é???????????é???±??????ˉè???1???3??????
?￥1è·?é?????????1?é?′é?￡é???·±?·±????2??￡??????¨è?????????￥1????o?????o??????°???è?¤èˉ????
??ˉ??ˉ?????3è|?è??è??????2??￡?????¤±????¤aé???o????
?￥1????????a???è??????2??????????
?￥1?1????è?¤??o??°??¨??°é????????è???????°???
?????￥????￥1??a??ˉ??·?·???°????????????a??é?????????????°??¨èˉ′è???o?????·2???????o????a??
é?????????????????
é????3????????????è?·????????￥???a???????￥é??????????§????????￥?????§?-????????1?é??é?·??????èˉ′????°±?????????é????°??¨???èμ·?o??????￥????1????????????????èˉˉ????o§??????a??
a???????ˉ????????????????????1??????a??
???èˉ???￠???????????￥???è????????????????????a?????é???????1??????????????????????????o???????￥?????￥????a??
??????é???????????è???o??????°??′?￠????????????????????oo??????
è??????????????????????oè?a?·±???????????????é???±?é?¨??￡èμ°??????
a??è·???????a??
é??????????′è§??????????????-￥è·???????