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车子的时速用how far提问吗,例如 it is very difficult for a person to know ___ a car is traveling

分类: 作业答案 • 2022-05-17 10:59:55

问题描述：

车子的时速用how far提问吗,例如 it is very difficult for a person to know ___ a car is traveling

答

应是：how fast