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In particular, he said priority should be given to addressing non-traditional security challenges such as public health.

This year, however, due to the COVID-19 epidemic, artists were unable to tour the Three Gorges themselves and had to base their works on previous visits, he said.

China's scientific and technological workers have made great efforts to catch up in quantum science and technology and made a number of significant innovations with international influence. On the whole, China has possessed the sci-tech strength and innovation ability in this field, he said.

"China launched the largest emergency humanitarian operation since the founding of the People's Republic of China in 1949. As long as there is still a corner of the world that is not free from the pandemic, China's sympathy, support and cooperation will never stop," Zheng said.

Xi stressed efforts to explore effective ways conducive to promoting smooth domestic circulation, advance the coordinated development of the upper, middle, and lower reaches of the Yangtze River, promote people-centered new urbanization, and increase people's life quality and income.