国际经济学 - 2026 进行中

科目: 国际经济学
级别: III (I级最简单，XII级最难)
类别: 大学生
试题语言: English
题数: 15
问题示例: Which regional trade arrangement removes internal trade barriers while allowing each member to set its own external tariff? A free-trade area, A customs union, A common market, An economic union