1.2 Video 1. A Brief Introduction to International Trade http://yzkc.scetop.com/gjmy/wp-content/uploads/sites/20/2021/07/国际贸易-简介.mp4 2. Free Trade Zones in China http://yzkc.scetop.com/gjmy/wp-content/uploads/sites/20/2021/07/中国的自由贸易区.mp4 3. 中美经贸合作:汇率问题达成共识 http://yzkc.scetop.com/gjmy/wp-content/uploads/sites/20/2021/07/中美经贸合作:汇率问题达成共识-.mp4 4. 什么是贸易顺差与贸易逆差? http://yzkc.scetop.com/gjmy/wp-content/uploads/sites/20/2021/07/什么是贸易顺差与贸易逆差-.mp4