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

<上一题目录下一题>

热门试题

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

单项选择题

The word quick-fix (Line 3, Para. 1)is closest in meaning to ______.

A．a ready solution
B．an optimal solution
C．an efficient solution
D．an expedient Solution