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单选题 What is the purpose of a duration survey

A. To determine where vehicles do park

B. To determine the lengths of time that vehicles are stored within the survey area

C. To interview motorists about their trip origins and destinations

D. To count the number of vehicles in each zone

交通工程专业外语(双语)课程封面

学科:交通工程专业外语(双语)

时间:2024-11-22 07:21:29

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