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Before the competing town halls, it had been widely expected that Trump would score a higher Nielsen rating, an estimate of the total number of viewers for a particular television program, than the former vice president since Biden's town hall only aired on ABC but the president's also appeared on NBC's sibling cable channels.

Beijing on Wednesday welcomed Canadian Prime Minister Justin Trudeau's remarks about trade with China, saying it is ready to work together to push forward the building of a free trade area.

Beijing-based Mobike announced on Wednesday its official launch of bike-rental services on the streets of Chile's capital Santiago, with a plan to gradually set up 100 smart parking spots in the future.

Beijing's local government is encouraging private sector to participate in the construction and operation of snow venues for Winter Olympics, government officials said in a recent news conference.

Beijing has 3.5 million residents aged over 60, and 9.8 percent of them are living alone.