On the afternoon of October 17, 2004, Vice Mayor of Beijing Municipality Zhang Mao was invited to attend the opening ceremony of the 1^st Youth Forum of World Petroleum Congress (WPC) at Beijing International Conferen...On the afternoon of October 17, 2004, Vice Mayor of Beijing Municipality Zhang Mao was invited to attend the opening ceremony of the 1^st Youth Forum of World Petroleum Congress (WPC) at Beijing International Conference Center.展开更多
文摘On the afternoon of October 17, 2004, Vice Mayor of Beijing Municipality Zhang Mao was invited to attend the opening ceremony of the 1^st Youth Forum of World Petroleum Congress (WPC) at Beijing International Conference Center.
