?????a?x′òá?á?ò?????è?μ????×￡??2??f?￡????????ê?′oê?μ??òè?￡??1
????′oê?￡?
?????D×óáY?·??μ?ê2üN??μ??¤?óá??é·??￡???úê?￡??1
?????a?x?±?óìí3????eμ?±??ü?×?é×??|·?ò??′?￡???a?x￡???à×μ?í?μü?￡?1
?????D×ó?′ò?±??ü?×?é??é?D|èYí?è??àá??S?à￡??B?èò2óH?Dá??e?í?￡????íê?D?éù??￡??°ê?×ó????2??ú?ò??ìáμ?D?éù???°ê?×óóDê?μ??|?Tò?ì?￡??]??μ??óè??üò?μ??ú±?è??￡?1
????ê??eá?±??ü?×?é￡??a?x??é??ì??μ?D|èYò2??oíá?D??￡????ê?′oê?μ??O×ó￡??1
??????ê?μ?￡??ò?????÷μ?￡?ê?′o?òμú??ê???′úè??￡?????×??μ?ê??ò