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题目内容双击单词支持查询和收藏哦～
A certain train travels 150 miles in h hours at the average rate of m miles per hour.
Quantity A:The number of hours required for the train to travel 320 miles at the average rate of 2m miles per hour
Quantity B:h
Quantity A:The number of hours required for the train to travel 320 miles at the average rate of 2m miles per hour
Quantity B:h
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以上解析由 考满分老师提供。
