从甲地到乙地,甲需要8小时,乙需要10小时,甲、乙的速度之比是多少?
从甲地到乙地,甲需要8小时,乙需要10小时,甲、乙的速度之比是多少?
数学人气：275 ℃时间：2020-01-25 20:51:33
优质解答
(1/8)/(1/10)=5/4
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