题目解析:
题干“葡萄牙商人在珠江经济的商业化中扮演了什么角色?”定位 Portuguese traders headed up the Pearl River to biannual fairs in the city of Guangzhou where they exchanged silver for export goods. 葡萄牙商人要么用自己的资金,前往广州参加一年两次的博览会,在那里他们用白银交换出口货物。These goods were loaded onto ships bound for the Japanese city of Nagasaki.
这些货物被装上开往日本长崎的船只。故 D 正确,A 错 create market 没提及;B 错 on credit 没提及;C 错 the first biannual fairs 一年两次没提及