??2?é???2?é??????o2?????a????o2?????a??????
。。。。。。
??¨è??é?1è??èμ·???????°???′???????2???2é?a????????a?????°?o????????-???¨????¥1è??è?2?????ˉ????¥??????′è????ˉ??????èμ°??¥???
??¨??′?oo???????§??a??a??§?èˉ-?????¨??1è¨???????èμ·?o???????
???μ??μ?????2é?aè???°???ˉ????¥????è???????¨??????????????????
?è°?èˉ′?????ˉ??¢????¤§???????-??????????????o????????????o??°???????????o??°???????????¨??2é?a???è°|?3?è??????ˉ1????¤???¥?????????????????o??°????????ˉè?-???è|?è????????????°±??ˉ???????????????
???????????????a??¢??????è??????1??-£???????ˉ????è°?é????¥é??é??è???′2??¥????????′?????¢??2é?a??¢??????
??????ˉ???è§??????§???????????a??o?¥???ˉ???è???????ˉé???????ˉ??2é?a??????
é??è°|?3?è???????¥???????o??2???2é?a???????????¨????????-é?′??????è??????????£????????2é?a????????¨?¤§???é?¢?????????é????a????¥??????????
??¤§???é???-?????????¢??????
??°±?o2??????è???·2???????2?????????????????¤§??¥?o?èˉ¥?????????????????????
?2???2é?a???????o?????°±è??é??è°|?3????????¥1???è?°????¥1??§??§è′′è??????o???????????¥1é??????????¨??????
?????¨??¨??′?oo???èμ·????£°??-?|???????
?o|????|??????????é?′??????????????1????????¥???è???????1???é?′???????????a?oo???????o???¥???????????¢????§????è????????è?3è?a?·±?????3è?????
???è??????§ˉé?a????o?????±±è·ˉ????°??¤???°?????¨???é?¢??1?????·é£??????????è????a??????????1???????
??a??ˉ????????°??¨??ˉ????¤?????2???????????¥???????
è???¤????????¤?è???????§??¨????-£????-????è????¨????????????é?′?????????????????°?o???????é?£??a????2???2é?a???èμ·???????¤?è????????èμ·??¥è??é????????????????¥?-????
??ˉ?????°????????-??1???????????°?o??2???2é?a?????¥????????ˉ???
?¥1èˉ′??????è???′2???????-??-?????????????è????????è°|?3???????
?è???′2?????????解???????????????
??-????é?a????????????é?a???èμ°??oè????μ?2?????????????????°±?¥??¥???¨???èμ·??????
???é??é????°????-????????2???2é?a??????????1?é?′?°?è?????????????a??¥????o???????
?¥1????????????è|?é?1????????¥????|??¥1??????????1??2????è????a??????é????????é??è??????????ˉ???