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Dozens of research groups around the world are racing to create a vaccine as COVID-19 cases continue to grow.
Dressed in white tai chi suits, more than 10,000 tai chi lovers celebrated the 2019 "Belt and Road" Tai Chi Tour, held in Chenjiagou, Central China’s Henan province on Sept 2, 2019. [Provided to chinadaily.com.cn]
Dong Dengxin, director of the Finance and Securities Institute at the Wuhan University of Science and Technology, however, said such worries are unnecessary.
Due to human destruction and natural weathering, some parts of the Great Wall are damaged or have collapsed, and are in urgent need of repair.
Dr. One isn’t the only project of its kind: For years, Matternet has been testing drone delivery networks for medical supplies in challenging locales such as Haiti, Bhutan, the Dominican Republic and Papua New Guinea.
来源：资阳报