艾迪和薇儿同时分别从AB两地出发,相向而行,到达对方出发地立即返回,已知两人在出发20分钟后第一次相

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艾迪和薇儿同时分别从AB两地出发,相向而行,到达对方出发地立即返回,已知两人在出发20分钟后第一次相
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