甲乙两列火车从相距1080千米的两地同时开出,相向而行,8小时相遇,甲车每小时行70千米,乙车每小时行多少
人气：333 ℃ 时间：2019-09-29 03:55:39
解答
70*8=560
1080-560=520
520/8=65
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