A staff member (L) briefs a visitor about how hydrogen fuel-cell electric vehicles work at the automobile exhibition area of the fifth China International Import Expo (CIIE) at the National Exhibition and Convention Center (Shanghai) in east China's Shanghai, Nov. 6, 2022. The fifth China International Import Expo (CIIE) is scheduled on Nov. 5-10 in China's economic hub Shanghai. Many green, low-carbon vehicles are showcased during the expo. [Photo by Fang Zhe/Xinhua]
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