单项选择题

What is the appropriate title for the passage

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

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单项选择题

The compound word quick-fix' (Line 2, Para. 1 ) is closest in meaning to ______.

A．an optional solution
B．an expedient solution
C．a ready solution
D．an efficient solution

单项选择题

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

A．develop sophisticated facilities on the interstate highways
B．accelerate the speed of the transportation
C．optimize the highway capabilities
D．improve communication between drivers and the traffic monitors