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AB兩地,甲乙兩人騎自行車行完全程所用時間的比是4:5,如果甲乙二人分別同時從AB兩地相對行使,40分鐘后兩人相遇,相遇后各自繼續前行,這樣,乙到達A地比甲到達B地要晚多少分鐘?
  AB兩地,甲乙兩人騎自行車行完全程所用時間的比是4:5,如果甲乙二人分別同時從AB兩地相對行使,40分鐘后兩人相遇,相...
2019-11-27 19:13:02
云南十一选五-欢迎您
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