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Beiijing embarks on air quality test for Olympics

 

 
A police officer stops a car with an even-numbered license plate on a main thoroughfare in Beijing during the first of a four-day air quality experiment for the Olympics, August 17, 2007. Drivers with even-numbered license plates were told to stay off the roads on Friday or face fines. On the first day of the test, traffic flow appeared to be lighter. [Xinhua]

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