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As the pandemic forced national lockdowns and dampened trade, worries about a more inward and less open world have emerged. Still, experts see positive signs in China's stance against protectionism and efforts to deepen opening-up.
As to the future, Zhang is confident her son will make even greater achievements.
As to the science and technology radiation, the cities ranking the top 10 are Beijing, Shanghai, Shenzhen, Chengdu, Guangzhou, Hangzhou, Xi'an, Tianjin, Suzhou and Nanjing. These 10 cities account for 36.3% and 33.2% of the country's human resources in R&D, and patent licenses. The top 30 cities make up 59.8% and 62.6% of the total respectively. It is noticeable that China's science and technology resources are highly concentrated in the leading cities of the ranking.
As well as killing the 13, the attack injured at least 5,800 people, some permanently.
As the ranks of people around the world living in cities has grown, so too has the cost of car ownership as well as traffic congestion.
