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行程问题—四年级
甲、乙两人从A地前往B地。上午8时8分，甲骑自行车出发，8分钟后乙骑摩托车出发。乙在距离A地4千米的地方追上甲，接着原路返回，返回A地后又立刻掉头出发，当乙再追上甲时，距离A地恰好是8千米。乙第二次追上甲时是几时几分？
四年级秒思数学37/97
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