what are the non-tariff measures?here is a AS economics question but unfortunatly i really dont
问题描述：
what are the non-tariff measures?here is a AS economics question but unfortunatly i really dont
here is a AS economics question but unfortunatly i really dont know what it is asking about...
答
进出口配额制 外汇管制 技术壁垒 绿色壁垒 等等.