从五代到北宋，广州已成为中国最大的商业城市和通商口岸，贸易额占全国98%以上。
From the Five Dynasties to the Northern Song Dynasty, Guangzhou has become China's largest commercial city and trading port, with trade volume accounting for over 98%.
秦皇岛中国东北部一城市，位于渤海湾沿岸、北京的东面，它以前是一个通商口岸，人口300。
A city of northeast China on the Gulf of Bo Hai east of Beijing. It was formerly a treaty port. Population, 300, 000.
秦皇岛中国东北部一城市，位于渤海湾沿岸、北京的东面，它以前是一个通商口岸，人口300。
A city of northeast China on the Gulf of Bo Hai east of Beijing. It was formerly a treaty port. Population, 300, 000.
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