网友回答：
340 square kilometers. shanghai has a permanent population of more than 13.50 million while it sees a large moving population of over 2.5 million daily.historically speaking，when the western great powers broke through the closed gate of china with their g
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
