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By injecting a genetically engineered circular DNA into the body, the envisioned vaccine is expected to stimulate the immune system and make antibodies against the coronavirus.
By the end of this year, there will be more than 3 million 5G users in China, Wang said. The numbers will mark a significant rise from the data in late November when the country had only 870,000 5G mobile subscribers.
By the end of 2018, a total of 27 enterprises in Changsha, capital of Hunan, had received recognition as national pilot models of intelligent manufacturing, the most among all provincial capitals, according to a local government work report.
By the end of last year, Xiqiang, headquartered in the city's Xiangshan district, had expanded its herd to more than 5,000, and each cow now produces more than 8 tons of milk annually.
By the end of February, China Eastern Airlines restarted 1,050 flights, with most of them catering to employees from Yunnan, Sichuan and Shaanxi provinces working in areas like Shanghai, Zhejiang, Jiangsu and Guangdong.
来源：资阳报