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Biden, who formally accepted the Democratic Party's 2020 presidential nomination on the final night of its convention last week, leads Trump by 7.6 percentage points nationally, according to the RealClearPolitics polling average. Trump, however, has repeatedly dismissed polls showing him falling behind.
Biden pledges free COVID-19 vaccines for all if elected - World - Chinadaily.com.cn
Beto O'Rourke (5.3 percent) hasn't announced his candidacy but is expected to run. The Texas Democrat served three terms in the House of Representatives and lost to Senator Ted Cruz last November in a race for the Senate.
Ben Wakana, executive director of Patients for Affordable Drugs, a bipartisan organization that supports lower drug prices, said in an email that tariffs on ingredients in drugs would run counter to US President Donald Trump's promise to lower drug prices. "For an administration that wants to lower drug prices, this would do the exact opposite," he said.
Besides Beijing and Shanghai, four other Chinese cities - Nanjing, Wuhan, Guangzhou, and Hefei - ranked among the top 20 global science cities, as measured by the Nature Index, which tracked the authorship of articles in 82 high-quality research journals.
来源：资阳报