Foreign visitors view Shanghai's architectural models during a major exhibition to commemorate the 40th anniversary of China's reform and opening-up at the National Museum of China in Beijing, capital of China, Nov. 19, 2018. (Photos: Xinhua)

Foreign visitors view Shanghai's architectural models during a major exhibition to commemorate the 40th anniversary of China's reform and opening-up at the National Museum of China in Beijing, capital of China, Nov. 19, 2018.

A foreign visitor views the spacesuits designed and made by China during a major exhibition to commemorate the 40th anniversary of China's reform and opening-up at the National Museum of China in Beijing, capital of China, Nov. 19, 2018.

Foreign visitors view the spacesuits designed and made by China during a major exhibition to commemorate the 40th anniversary of China's reform and opening-up at the National Museum of China in Beijing, capital of China, Nov. 19, 2018.