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"Concentrated observation of them is needed because if they instead returned home for self-quarantine, there would be great risks of cross-infection among families," said Deputy Director Pang Xinghuo, of the Beijing Center for Diseases Prevention and Control.

"Covering sandy earth with gravel can reduce water evaporation and sandstorms, and protect plants from diseases, insects and pests," said Zhang Shouge from the city's agriculture department. "It is a traditional but scientific method that farmers discovered in the ongoing battle with drought."

"Compared with traditional venture capital, CVC has the advantages of a longer investment cycle and higher risk tolerance, and it can offer startups with more value-added service," he said.

"Cultural consumption deserves our careful study. It should receive as much attention as the consumption of goods and tourism because it contributes to improving people's livelihoods and countering downward pressure on the economy," Li said.

"Chinese parents are obsessed about education, something that is based in the culture," said Jeff Zhu, vice-president of Shanghai-based Dipont Education Management Group. "It has always been perceived as the main, if not the only, ladder, for the elevation of social status."