Beijing Subway Line 4 Begins Test Operation
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People visit a station of Beijing Subway Line 4 in Beijing, capital of China, on May 31, 2009. Beijing Subway Line 4 of about 28 kilometers began test operation on May 31. It will be put into use at the end of September. [Xinhua]
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People take a train of Beijing Subway Line 4 in Beijing, capital of China, on May 31, 2009. Beijing Subway Line 4 of about 28 kilometers began test operation on May 31. It will be put into use at the end of September. [Xinhua]
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