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It took the United States, which has one of the world's most advanced disease-surveillance systems, an almost identical amount of time to identify a novel H3N2 swine virus that caused serious illness in a child in 2011, it added.

The government has pledged deeper reforms in rural land management system to speed up the transfer of rural land to improve efficiency and promote large-scale commercial farming.

"For me personally, this summit represents a tremendous opportunity to broaden my international horizons and exchange ideas with young people from other countries. There is no doubt that I will benefit from it enormously," Pan Yuan from Peking University said.

Thatcher was a prominent stateswoman who made great contributions toward the development of Sino-Britain relations, including the peaceful settlement of the Hong Kong issue, Hong said.

Comprehensively deepening Canada-China relations is a priority of Canadian foreign policy, Baird said, stressing that Canada is ready to work with China to expand bilateral cooperation in trade, investment, energy, resources, culture, education and other fields.