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China has seen continuous improvements in air quality since 2013, when pollution levels hit a record high, with another drop in "smoggy days" recorded last year, according to meteorological data.

China has signed coproduction agreements with 18 countries, and a State-backed distribution program to release Chinese-language movies abroad - which took off earlier last year - has reached mainstream cinemas in North America, Europe, Oceania and Asia, according to Zhang.

China highly appreciates the Greek president's opinions, Geng said, adding that respect for cultural diversity is the precondition of world peace and harmony, and carrying out dialogue provides important guarantees for peaceful coexistence.

China has set the aim of becoming an "innovation nation" by 2020, an international leader in innovation by 2030, and a world powerhouse in scientific and technological innovation by 2050.

China hopes all related parties will behave with caution and jointly safeguard the peace and stability of the region, he said at a daily news conference.