Major officials at all levels should map out and push forward reform, be realistic and persistent, aim in the right direction, be courageous in taking responsibility and do a solid job in a hands-on manner, Xi said.
Ma Jiantang, Party secretary of the Development Research Center of the State Council, said young entrepreneurs' innovation and career development should be given full support.
Major US oil companies were caught in the downdraft. Shares of Chevron and Exxon Mobil fell.
Ma Xu, China's first female paratrooper and a doctor for the People's Liberation Army in the 1940s, donated her life savings of 10 million yuan (.45 million) earlier this month to her hometown, Mulan county, in Heilongjiang province.
Maiden flight of CR929 is scheduled for sometime in 2023.
Manufacturers unveil new production lines to boost output, enhance competitiveness
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Major international carmakers showed their latest models and technologies at the expo as well.
Malls, supermarkets and agricultural markets in the province should take the temperature of all customers and ensure they wear masks. Special staff should also be engaged to keep customers at safe distances from each other.
Major internet companies raked in 344.6 billion yuan (.32 billion) in the January-April period, up 4.9 percent year-on-year, according to the Ministry of Industry and Information Technology (MIIT).
Ma Jingna contributed to this story.