National flag of the People's Republic of China (C), Flag of the International Exhibitions Bureau (L) and the Flag of Expo 2010 are raised during the opening ceremony of the 2010 Shanghai World Expo at the Expo Cultural Center in Shanghai, east China, April 30, 2010. (XINHUA)

 

The national flag of the People's Republic of China is raised during the opening ceremony of the 2010 Shanghai World Expo at the Expo Cultural Center in Shanghai, east China, April 30, 2010. (XINHUA)

The flag of the International Exhibition Bureau (BIE) is raised during the opening ceremony of the 2010 Shanghai World Expo at the Expo Cultural Center in Shanghai, east China, April 30, 2010. (XINHUA)

The Shanghai World Expo flag is raised during the opening ceremony of the 2010 Shanghai World Expo at the Expo Cultural Center in Shanghai, east China, April 30, 2010. (XINHUA)

(Xinhua News Agency April 30, 2010)