单项选择题

The American Automobile Association Foundation for Traffic Safety plans to ______.

A．try out the Japanese method in certain areas
B．sign the chevrons across the country
C．replace straight horizontal bars with chevrons
D．repeat the Japanese road patterns
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单项选择题
What does the author say about straight, horizontal bars painted across roads
A．They are falling out of use in the United States
B．They tend to be ignored by drivers in a short period of time.
C．They are applicable only on broad roads.
D．They cannot be applied successfully to traffic circles.
单项选择题
The main point of the passage is ______.
A．a new way of highway speed control
B．a new approach to training drivers
C．a new pattern for painting highways
D．a new type of optical illusion
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