高校问答
中梁地产董事长女儿:help me !!!!!!!!!plase hurry
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高校问答
时间:2024/05/16 10:15:35
甲,乙两人在距离90米的直线道路上跑步。甲的速度是每秒跑3米,以的速度是每秒2米。如果他们同时分别在直路两端点出发,当他们跑了10分钟,那么在这段时间内,甲乙共相遇了几次?
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