è?1?1·1·ê?2?ì??2???′?èμ?D???￡?è??ò3¤?éò???ò?????×ó°???òo?è3???￡?è?oó?ú1·1·μ???ê??é??μ??é????￡?°???êíμ???òoè÷μ?1·1·éíé?2￠èà3??Y?-?￡

?a??·?·¨??Dèòa?ú3????Y?-ê±??1·1·3?ò?′???￡??a?ù?éò???éùá?ò?′??üoí?????￠μ??ú?á?￡

2?1y￡??a??·?·¨??óúì?Dí±è??′ó?ò??·￠±è??o?μ?1·1·2?êêó??￡òò?a??êíoóμ???òoò???×ó?í?á±??é??μ?o????üê?á?òaó?Dí?àDí?à??òo2??éèà3??Y?-￡?±è???é·3?￡

?ùò?￡????aàà1·1·?′?è?éò??èó?±è??êaμ????í°??ü??·￠′òêa￡??ùê1ó???êíoóμ???òo?￡