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Vehicles run in the snow in Harbin, capital of northeast China's Heilongjiang Province, Nov. 7, 2010. A cold front was sweeping the northern parts of China, causing snowfall or sleet and making the temperature drop in the areas. (Xinhua/Xiao Jinbiao)

Vehicles are seen in the snow in Harbin, capital of northeast China's Heilongjiang Province, Nov. 7, 2010. A cold front was sweeping the northern parts of China, causing snowfall or sleet and making the temperature drop in the areas. (Xinhua/Xiao Jinbiao)