外部供应链是供需网络中的供应商、制造商、运输供应商、零售商、最终消费者，参与企业相关产品的生产和流通。External Supply Chain the supply and demand network suppliers, manufacturers, transportation providers, retailers, final consumers, involved in the production and circulation of enterprise-related products.

A.正确

B.错误

正确答案：正确