目录：

800÷160

800÷160

1、???????￡±?òμéúμ?????o???á??üó??à??￡?±?òμ???????ü???êá?′ú?′￡?′ú?′?ú11ê????ù?ú?ìê±???úìá1?3?2ú?·μ?￡?×÷?a?§ê?3é1?μ?????ó?ê????ùí¨1?μ?ê|éó2é?￠?????￠′?±?μ?￡??üè?￡?è?±¨????é?è?μ÷2é2￠í?3???????′ú?′3é?°á÷?????±?·μ?±¨μà￡?ê?êμ??3?￡????-???ú￡????¤ó?á|￡?ò?·￠?á??1?×￠?￡

2、????????′ú?′μ????a±?éí?íê?2?·?o??§?￡1?·?μ?￡?è?1??ù??????′ú?′éìòμ?ˉ￡??ü?é??′íé??ó′í?￡?aá??a??ê?êμ???à￡??????×éíì??éá?′ú?′μ?1?3ì￡?2￠±?×?êμê??óê?μ??-?ò￡???????′ú?′μ???×′????á??í1??￠1???μ?±¨μà?￡?a?ù?′3?à′μ?±¨μà??êμ???ü??￡??üó??μ·?á|?￡?ú?ê???êìaê±￡?????μ???1a2￠??ó?í￡á??ú???ó±?éí￡???ê?′ó???óè?ê?￡???ò?2?é?è?íú?òò?2??ú???ó±3oóμ?êμ?ê?êìa￡????óá?????μ??úo-oíé??è￡??áà′ò2?ü?íè??°???￡?ú????μ?×?oó￡?????ò??????aμ???3??êìa±??ê￡o?????°′ú?′?????±1??ü?úμ?ê|?￡è?1????￡?ìê|??±?òμ?????ü????°?1?￡?????3?μ￡??éóo?μ???è?à′￡??§éú?ú?ìê±?ú?ú?òè?′ú?′?????ù±?é?ê?2??é?üμ?￡?????ò2oü???ì?ù?￡μ?è???ò???μ?ê|??μ?o??????§éúμ?????￡??ì?§????è???oü??￡??ù?óé?μ￡è?ò???é??á?°??￡?òò′??ío???á?±?òμ????μ???μ??￡??óú?§éú3-???ò??1o?ò±?òμ????￡?????íùíùò2??ò?????±?ò?????￡???ê1?í?à?§éú?ú?????ì?ùê±?ü?ó?á???éμ??￡

3、????ê?3??-????oü?à???a???úéìòμ?ˉ￡?μ?±?òμ?????aò????ú??′ó?§éú?§éúéú??μ??§òμ×ü?áμ?áìóò￡?è?1?ò23?3a×?éìòμ?ˉμ???μà￡????í2??ü2??μê?μ±′ú??μè?ìó?μ?±ˉ°§?￡?????????ó×????1òa?????èμ?1?·?ó??¨éè￡?ò??°??è?μàμ?????μ?ìáé??￡è?±¨??′ú?′????μ?±¨μà·￠è?é?ê?￡??￡í??üò???????é??áμ???êó?￡