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Xi and Obama held their first meeting this year on the sidelines of the two-day third Nuclear Security Summit in the Netherlands.

"Meanwhile, emotions of the relatives of the passengers should be taken good care of," he said, "China stands ready to keep close cooperation with Malaysia and I am ready to keep communication with you at any time."

Zhang Junshe, a researcher with the Navy Military Academic Research Institute, said the drill is an early-planned routine one with a focus on safeguarding marine traffic.

Meanwhile, China should actively participate in global and regional economic cooperation, solicit foreign investment and encourage export of its high-end products, he added.

BEIJING, March 4 (Xinhua) -- At a corner of the Aegean Sea along the east coast of the Saronic Gulf lies the ancient Port of Athens -- Piraeus. Merely a dozen kilometers away from central Athens, it has long been the largest passenger port in Europe, bustling with ferries and cruisers.