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Liaoning's combat and power system and its seagoing capability have been further tested during the trip. "All tests and training programs went well as scheduled", according to the source.

At the Geneva-Beijing Economic Forum, Cheng Hong, deputy mayor of Beijing, said around 220 Swiss enterprises have invested in Beijing, and the total trade volume from January to June between Beijing and Switzerland has surpassed 16.3 billion U.S. dollars.

The two-way trade between China and Singapore grew 24 times to 69.3 billion U.S. dollars in 2012, from 2.8 billion dollars in 1990, while mutual visits amounted to a total of 2.8 million person-times last year.

Zhang urged improving food safety standards and enhancing supervision. Local areas as well as central and western China should prioritize allocating investment for food safety.

"As to problems left over from history, we hold that they should be resolved through dialogues and we are taking active measures to safeguard the overall situation of peace, cooperation and cooperation," he said.