供应链由所有的节点企业组成，其中一般都有一个核心企业。The supply chain is composed of all the jointed nodal enterprises, among which there is generally a core enterprise.

供应链由所有的节点企业组成，其中一般都有一个核心企业。The supply chain is composed of all the jointed nodal enterprises, among which there is generally a core enterprise.
A.正确
B.错误
正确答案：正确