Chinese President Hu Jintao (2nd R) and his wife Liu Yongqing (1st R), accompanied by Danish Queen Margarethe II (2nd L) and her husband, Prince Consort Henrik, inspect Denmark's sustainable development and green living initiatives in Copenhagen, capital of Denmark, June 15, 2012. (Xinhua/Lan Hongguang)

Chinese President Hu Jintao (L) meets with Danish Queen Margrethe II in Copenhagen, capital of Denmark, June 15, 2012. (Xinhua/Ma Zhancheng)

Chinese President Hu Jintao (2nd L) and his wife Liu Yongqing (2nd R), accompanied by Danish Queen Margarethe II (1st L) and her husband, Prince Consort Henrik, inspect Denmark's sustainable development and green living initiatives in Copenhagen, capital of Denmark, June 15, 2012. (Xinhua/Lan Hongguang)