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单选题
According to Larson, to redress the traffic problem, _____.
A
car pooling must be studied
B
rapid mass transit system must be introduced
C
flexible work hours must be experimented
D
overall strategies must be coordinated
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参考解析
解析：
细节题。第五段Larson发表自己对smart-highway的见解时提到smart-highway仅仅是“part of the package. There are different strategies”，暗示了交通问题的解决仅靠现代技术是不够的，还需要各个策略的协调，选项D符合。
细节题。第五段Larson发表自己对smart-highway的见解时提到smart-highway仅仅是“part of the package. There are different strategies”，暗示了交通问题的解决仅靠现代技术是不够的，还需要各个策略的协调，选项D符合。
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