Assuming that a constant travel-time
budget, geographic constraints and short-term infrastructure constraints persist
as fundamental features of global mobility, what long-term results can one
expect In high-income regions, (21) North America, our
picture suggests that the share of traffic (22) supplied by
buses and automobiles will decline as high-speed transport rises sharply. In
developing countries, we (23) the strongest increase to be in
the shares first for buses and later for a A. Despite the fact B. Whatever it is C. No matter how D. Whether or not 更多"Directions: There are 15 questions "的相关试题: [单项选择] Directions: There are 15 questions in this part of the test. Read the passage through. Then, go back and choose one suitable word or phrase marked A, B, C or D for each blank in the passage. Mark the corresponding letter of the word or phrase you have chosen with a single bar across the square brackets on your Machine-scoring Answer Sheet.
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