小船按水流速度由A港漂到B港需要多少小时?救生圈是在何时掉放水中的?一小船由A港到B港顺流而下需6h,由B港到A港逆流而上需8h,一天,小船从早晨6点由A港发驶向B港,到达B港时,发现船上一救生
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![小船按水流速度由A港漂到B港需要多少小时?救生圈是在何时掉放水中的?一小船由A港到B港顺流而下需6h,由B港到A港逆流而上需8h,一天,小船从早晨6点由A港发驶向B港,到达B港时,发现船上一救生](/uploads/image/z/10200750-6-0.jpg?t=%E5%B0%8F%E8%88%B9%E6%8C%89%E6%B0%B4%E6%B5%81%E9%80%9F%E5%BA%A6%E7%94%B1A%E6%B8%AF%E6%BC%82%E5%88%B0B%E6%B8%AF%E9%9C%80%E8%A6%81%E5%A4%9A%E5%B0%91%E5%B0%8F%E6%97%B6%3F%E6%95%91%E7%94%9F%E5%9C%88%E6%98%AF%E5%9C%A8%E4%BD%95%E6%97%B6%E6%8E%89%E6%94%BE%E6%B0%B4%E4%B8%AD%E7%9A%84%3F%E4%B8%80%E5%B0%8F%E8%88%B9%E7%94%B1A%E6%B8%AF%E5%88%B0B%E6%B8%AF%E9%A1%BA%E6%B5%81%E8%80%8C%E4%B8%8B%E9%9C%806h%2C%E7%94%B1B%E6%B8%AF%E5%88%B0A%E6%B8%AF%E9%80%86%E6%B5%81%E8%80%8C%E4%B8%8A%E9%9C%808h%2C%E4%B8%80%E5%A4%A9%2C%E5%B0%8F%E8%88%B9%E4%BB%8E%E6%97%A9%E6%99%A86%E7%82%B9%E7%94%B1A%E6%B8%AF%E5%8F%91%E9%A9%B6%E5%90%91B%E6%B8%AF%2C%E5%88%B0%E8%BE%BEB%E6%B8%AF%E6%97%B6%2C%E5%8F%91%E7%8E%B0%E8%88%B9%E4%B8%8A%E4%B8%80%E6%95%91%E7%94%9F)
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