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-- Excellent conduct must be encouraged to ensure joint efforts for building a moderately prosperous society.

The Mekong River, also known as the Lancang River in China, is a vital waterway for cross-border shipping among China, Laos, Myanmar, Thailand, Cambodia and Vietnam.

China should shore up its weakness in certain areas, keep pace with the leaders in some areas, and strive to lead in other areas, aim for significant breakthroughs in core and key technologies, improve the overall efficiency of the national innovation system, boost science and technology strength and innovation ability, in a bid to earn itself a spot in the global hi-tech sector, he said.

In 2017, the country's GDP was 12 trillion U.S. dollars, accounting for 15 percent of world GDP, statistics from the National Bureau of Statistics showed.

But with data from NASA's Terra and Aqua satellites, scientists realized that humans are also contributing.