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CAIRO, Feb. 26 (Xinhua) -- Nine tourists from China's Hong Kong were killed in a balloon crash Tuesday morning in Egypt's Luxor governorate, a local health official told Xinhua.

The report will serve as a reference tool for the government, public institutions and researchers in making policies and decisions, Xie said.

-- China's manned submersible, the Jiaolong, set a new national dive record after reaching more than 7,000 meters below sea level during its dive tests in the Pacific Ocean in June.

However, cities like Jinan and Xi'an were still rated as "gravely polluted".

Internet users who have accounts on popular commercial or social networking sites are at the greatest risk of having their information stolen, according to Feng Qiang, an employee of a commercial website, adding that netizens' personal information is managed by the websites' operators.