第21章（第1页）
1???êììyíê￡?3á??á????ì￡?á3é??′2?3?ì??à±i?é￡?μ???é?è′à?á???è￥?￡
?°?uò?￡?ê?òo?a?a??￡??±????ê?x???x?ó?￡?ó???ê??ú?êéo?y3ù?￡
?°ê?òo?a?a???e￡??±éo?y3ù?±?Dμ?x·?ê￡??°ê??-?-??éuòaé?μ???ê?￡??±
1???êì??óD?±?ó??′e￡???ê??′x???￡?o?è??êá?ò???·??i?￡2??à?°μ??êìa￡o?°????μ??°￡???ìáμ?á?á?T±T±μ?3μ???é?ü2?ê?òaía￡?°μê???μ?x?á?è?￡?óD??óDìáμ???ì?±eμ?￡??±
éo?y3ùxD??????￡?3ˉx?1???êìò?á?ò?í·￡o?°??óD?￡?±
1???êìμ????Déá1yò???á?è?μ?1a?￠￡?′???1′?eò??¨à?ùyμ????è￡o?°1?è??￡?±
?°1?è?ê2?′￡??±éo?y3ùíêè??u2?é???μ????·￡?ò2ìy2??÷°x???ú?μê2?′?￡
?°??·?μ???±ê?é?ü2?ê???￡?ò22?ê?á?T±T±?￡?±1???êìμ?éuò?à??2μ??uo?2D?á￡??°??ê??ò?￡?o??￡?ê???í¨1y??￡?à′ê?ì?é??á?ˉ???ò?￡?±
éo?y3ù??x?á?￡??a??ê±???u·￠éuμ?ò??D?1è???ê?±3ooμ?è???í¨1y??à′?ˉ??oí±¨?′1???êì?￡
?°??ìi??ìyμ?μ????÷￡?é??°μ?à?ò?·?oü?à?￡óDè??oDi2i??μ?á???μ?′??ú￡?é??á?é?ü?o?áá???oí?ò????μ?1??μ?￡?±1???êì·???x?￡???1aè?í?ò?°??x1aμ?à?èD￡??°?ˉ??￡??o???ˉ???úòaμ?è?￡?ê?x?o?μ??ˉ??oíê?ì?·?ê??￡????μ??°￡?2?1yê?°????á??￡??o???-?-??????òy￡??T?????ò?￡?±
?aò?á?′?μ?·???￡?è?í??úéo?y3ù???°???aá?áiò???êà??á???μ?ò???￡?????êà??3??uá???óY?ò???￠±uà?2D?áμ?????￡?ê???íêè???óD?ó′￥?ò?T·¨???oμ??￡
????￡??1è??ú2??a2????D￡?3éá?±eè????ìé?μ?ò?????xó￡?é??á3éá?1???êìμ??-?-èià?￡?
?a??è??aè????Dμ?ò??oo?òa￡?è′ò2óDò??????????yμ??D???￡
?°?a?-?-?aê2?′?T??????￡??±???éé?μ??ê?￡
?°oü?oμ￥?￡è?1???è??¨ê??òx?μ?￡??á???′?u￡??±1???êì·′?ê?￡
éo?y3ù???ú?T???￡???áoT??￡??á·′?1￡??á2??§ò??D?-?-?aè·êμ?á??1???êì′?à′?é·3?￡é??áè?1?μ±ê±??3??ˉ????x?á?ê2?′?-?-
ò?1éoo?aoo??μ?o?òa′üé??1±3?￡
1???êì?′x????Dè?ó?2?°xμ?á3é?￡??aμà?????÷°xá??￡??é??°ò?2?￡?ì§ê?￡??a′?éo?y3ù??óD???a?￡
?￠á1μ?ê????á?á·÷1y??μ?á3??￡?′?x?ò?????ò???ó÷μ??′?óòa???￡
?°???ú?÷°xá?￡??±1???êìμ?éuò?μí3á??à′￡??°°???1??ú?aà?￡?2?ê?3í·￡￡?ê?±?òaμ?±￡?¤?￡ía????′ó?ò?aà?μ?μ????÷?o??±¨?′?òμ?è?￡???±è????μ?òa?à?￡?????-?-?±
???ùá??ù￡????aí￡á??úéo?y3ùμ???o￠￡??￠?￠ó?á|￡?è???ì§?eí·?′x?x??o?￡
?°???èè?ò?2???′iμ?x???á??a????￡?ó?3éá?±eè???à?μ???°Dxó?ˉ￡??í±e?ù??x??ü?áòx3ééi?￡?±1???êìμ???é?é???è?ò1￡?′?x?ò???2?èY?1?üμ???ê?￡??°?áéù?ú?ò?a??μ??é·3???°￡??????ü′y?ú?òéi±?￡???à?ò22?x?è￥?￡?±
??μ?ó???2??ùê?μ￥′?μ??uá?￡???o??12??óá?D?±eμ?ê2?′?￡ê??eè?￡?ê???óD￡??1ê??-?-
éo?y3ù?u?uμ??′x???￡?D??à?úD???à?ê§Doμ?ì??ˉ?￡????òà?é′??ú￡?μ??u?àμ?ê?ò????T′oμ??￡è?oíμ??2?￡
???uò??aμ?±¨?′ó??·￡????uò??aμ?à??á???§￡????uò??aμ??????-?-±3oo?1è?òt2?x?è?′?′ix??′?óμ?°μá÷oí?-?-±￡?¤￡?
êà???ú?????°31μxμ?μ1á?1yà′?￡
?°??íi?òá??ú?aà??￡?±1???êì?é?aê?￡?xaéix??o??êò￡?ó???2?èY??òé￡??°???ˉ?÷??￡??ò?ˉ?í·??￡?±
éo?y3ù?′x???μ?±3ó°￡???á???xi￡?è′·￠??x??oê2?′ò2?μ2?3?à′?￡
?aò?íi￡?éo?y3ùìé?ú?°éuμ?′o′2é?￡??·xa·′2à?￡
′°íaμ?3?êDòà?éDu?u￡?????μ?D?à?è′1??eá?ò?3??u′oμ?·?±??￡1???êìμ?·???2????ú????o￡?D??·?￡?μ??2x????uóDμ?è??a?￡
è?1?ò??D??ê???μ??-?-??1???êì?-?-
′2í·1?é?￡???μ?ê??u?á??o?è?ááá?ò???￡???ê?óDò?ì?D?D??￠à′x??′?ao????￡
éo?y3ùμ?D??íμ?ò?ì?￡?x￥1yê??u?￡
D??￠?úèY??óDò????°￡?è′è????2??è?x1±u???a?a
??à?1???êì??μ??￡??′?￡??í2?ê?3μ???a?′?oμ￥á??￡??
μú12?????Téu?￠μ?í??a￡?D?è′?òá??úxà
ê??u?á??é?μ???DDx?￡?????é?μ?D?xó￡?±uà??????u?￡