第15章(第3页)
?§|??????èˉ′????????????????o???μèˉ????
?????????????????′è§?è?o??????é?′??-é?a??¨??o?????ˉ???
?è??èˉ-?1??¤a????o????????????a???èˉ¥?-???????????1??????????è°£è¨??o???????
???????????¥????????o????è???????ˉ???????1??′2??????????oo?????????
?????????èˉ?è?o??·???????¥??????3èˉ·????§?????1?????°±?????????
??a??ˉ?±?è¨??§?èˉ-?????????èˉ??????¨é?¨????¤±???è¢??¤?èμ??????£??????
??????????????????????????-?o§??¤??1??o?????ˉ???é?????
?@??¨??????????????????????-|????????¨??????é?¢????±???????è?2?o§a?|a?|???
?13?13????¥?????????ˉé????¥?????′è???§|??????????????????é?′?2???¥è°·?o????
?¥1????1?????o?????-|???è′′??§???é??è°£è???2?解??3???
è?a?·±??¨?¤§???é?¢???é?2?o?è???????????è?ˉ???è|????????′¢???é?£?o?é??è°£è′′è???2????????????????è¢????è§????
?????????é£??????±????o????é?μ?¤a?????3????ˉ?èμ·?-|???é?????é??è°£???è???1?è??????????????
??°????????????????o???ˉ?????oè?¥é£?è??é?¨???
??????????1???aè????????èμ??′§???????ˉ?èμ?????¥?è??è£′??????????????????
??1?o???£?°???????????§??????′?????°?ˉ?????????¥?????μèˉ????
a???§|??????????????¨??a??¢???????1???????????-|??????a??
???????ˉ1é?¢??£???????£°é?3????§|??????????o?é????????a??????1??o?è????????a??
?ˉ1é?¢?????¥???????°??°?????????¨??????????§??????¨??£????£°é?3???èμ·???
a????????????o????解??3?o????é??è°£???????ooè¢????????o????a??