close
Blogtrottr
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中 
数学题!尽快给我答案!谢谢!
Jul 31st 2013, 08:04

在一个平静的河里,大力用了12分钟游到终点(根河水反方向)(去)。但是他用了4分钟游到终点(根河水是同一个方向)(回)。如果他不游泳哪个河水会用几分钟把它冲回起点??(根河水是同一个方向,同一个距离)

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: 'You Say What You Like, Because They Like What You Say' - http://www.medialens.org/index.php/alerts/alert-archive/alerts-2013/731-you-say-what-you-like-because-they-like-what-you-say.html

You are receiving this email because you subscribed to this feed at blogtrottr.com.

If you no longer wish to receive these emails, you can unsubscribe from this feed, or manage all your subscriptions
arrow
arrow
    全站熱搜
    創作者介紹
    創作者 omoss 的頭像
    omoss

    中視聶小倩線上看 , 聶小倩線上看第二集 , 聶小倩 中視 , 聶小倩電視劇 , 聶小倩

    omoss 發表在 痞客邦 留言(0) 人氣()