单项选择题

Which of tile following is tree about driving on an automated high way

A．Vehicles traveling on it are assigned different lanes according to their destinations.
B．A car can join existing traffic any time in a mixed lane system.
C．The driver should inform his car computer of his destination be fore driving onto it.
D．The driver should share the automated lane with those of regular vehicles.
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单项选择题
A special-purpose lane system is probably advantageous in that______.
A．it would require only minor changes to existing highways
B．it would achieve the greatest highway traffic efficiency
C．it has a lane for both automated and partially automated vehicles
D．it offers more lanes for automated vehicles
单项选择题
We know from the passage that a car can enter a special-purpose lane______.
A．by smoothly merging with cars on the conventional lane
B．by way of a ramp with electronic control devices
C．through a specially guarded gate
D．after all trespassers are identified and removed
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