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And as the world grapples with the deadly novel coronavirus pandemic that essentially keeps people indoors, sucks the life out of physical stores and disrupts normal marketing campaigns, livestreaming in China is also helping affected areas revive business and expedite the digital transformation of several sectors and transactions.

Analysts believe the international oil market will remain vulnerable to multiple factors. For example, Organization of the Petroleum Exporting Countries (OPEC) and non-OPEC producers have agreed on an extra cut of 500,000 barrels in daily output in the first quarter of 2020.

Analysts said that 2018 will be good for the residential leasing market as central and local authorities continue to encourage development of rental housing projects, giving developers strong incentives such as favorable financing conditions. Land supplies also lean to the leasing market instead of pure commercial sites.

Andrew Smith, a professor of political science at the University of New Hampshire and director of the school's survey center, said Harris's attack on Biden wasn't a surprise.

And the inquiry the US administration has ordered into China's trade policies, if carried out, could intensify tensions, especially on intellectual property rights.