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"Cuban educational professionals answer the students' questions live and in a quick manner. Through this new technology we are expanding the educational spectrum in the country," said Rolando Forneiro, Cuban deputy minister of education.

"Couples, friends and families may want to stay together, so in those cases, it is not suitable to force male passengers out of the carriages," an official with Guangzhou Metro said.

"Currently companies have data but are lacking people with expertise to enable them to use it. So we use virtual data scientists to help them," said Sharif, who is in his final year studying data science at Shanghai New York University.

"China's vital position in manufacturing, services and the retail sector won't change. The outbreak has not caused a notable shift in the consumption trend, supply and production chains," he said.

"Cross-border e-commerce has made rapid and notable achievements since the pilot zones were established and has become a new area of growth for imports and exports," Li said. "We should facilitate domestic consumption and at the same time improve export quality in the global market."