单项选择题

According to Larson, to tackle the traffic problem, ______.

A．car pooling must be studied
B．overall, strategies must be coordinated
C．rapid mass-transit systems must be introduced
D．flexible work hours must be experimented

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单项选择题

The most appropriate title for this passage would be ______.

A．A Venture to Remedy Traffic Woes
B．A Quick-fix Solution for the Traffic Problems
C．Highways Get Smart — Part of the Package to Relieve Traffic Gridlock
D．Smart Highway Projects — The Ultimate Solution to Traffic Congestion

单项选择题

According to the passage, the smart highway technology is aimed to ______.

A．optimize the highway capabilities
B．provide passenger vehicles with a variety of services
C．install sophisticated facilities on the interstate highways
D．improve communication between driver and the traffic monitors