Unit One North America 1
Unit Two South America 48
Unit Three Africa 87
Unit Four Middle East 115
Unit Five East Asia 155
Unit Six South and Southeast Asia 182
Unit Seven East Europe 236
Unit Eight West Europe 278
Unit Nine North Europe 326
Unit Ten Oceania 369
附录一 各单元国家的国旗国徽 399
附录二 主要贸易港口 406