Final answer:
Three important Chinese regions outside of Zhoukoudian are Tibet, Tianjin, and Inner Mongolia, each vital for their cultural significance, strategic locations, and economic contributions to China.
Step-by-step explanation:
Three of the more important Chinese regions outside of Zhoukoudian are Tibet, Tianjin, and Inner Mongolia. These regions are vital to the Chinese government for several reasons. Tibet, for instance, is significant due to its unique culture, strategic location, and resources. It is also important for geopolitical reasons and serves as a buffer region. Tianjin as a directly controlled municipality is another essential area with substantial economic growth and development. Additionally as part of northern China it includes the productive agricultural lands around the Yellow River.
Inner Mongolia lying north of the Great Wall encompasses the Mongolian steppe and is important for its natural resources and cultural heritage. These regions play a significant role in China's demographic diversity, economy and heritage, reinforcing why they are considered important outside the historical context of Zhoukoudian.