第12章（第3页）

?±?????¤?????????????????????o????-??¤′?1????????????′?2??????￥???????￥?????ˉ???￥èˉ????

a??è????ˉ????????????é¤????????????￥????¤??oo????????￥?ˉ?è???3¨é?????è′¨???a??

??￠è??è¨??1????è??é?????è′μ???

???????￥??????￡???????o???§??????a??è???????′è′1?o?????????￥?°±??ˉ??????è°￠??????è??é???????￥?????§???a??

?±?????¤???′????¤′???a???????¨??????è|??????3???è°￠???????°±???????????°è????a???a??

???èˉ′???????°??????o??¨è????￥???

?????o?????ˉ??????a???±??1?é???￠|a???1′?o|????ooèμ?????μ·??￥????￥??????????è￠??o￠???????o?èμ·??￥???

a?????è|?è????a?¤??o§?-|??¨???è?3?o?è??é￠????é￠???1?????ˉ??￥?????????a??

???é￠???1????????ˉ????????ˉ??￥é????°è°???′???????¤?è2????

???????￥???′???????o????a??????-??o???????èμ?????????????é??è|????é￠???1???a??

??1?????1??o?¨?????ˉ1?￥1?2????????1?????￥1?·2????????¨?1??¤??????ˉ????1?????3????

?±?????¤?????°???¨???é?￠è????2?????′???????????????

a??é?????????????§???a??

??????é￥-????±?????¤???????????￥?é???????????

a????????è??è?oè?????è??è???±?è?????????o??????????????¤???????è?°????????·????????|?????·?????????a??

èˉ′???????±?????¤???????è???21é?¨?|???????

???????￥??????°?????1è????????è?o???????°±?????°é??é?￠????·2??????????o?é?????

#éo?éo????????????°?3?????-??????2?????????é???±????#

#??￥????????1????￥3?￥??????°?3?????-?????????????#