EDI
参考答案:
电子数据交换,是企业内部应用系统之间,通过计算机和公共信息网络,以电子化的方式传递商业文件的过程。
—Is this _______ notebook?
—No, it isn't _______. [ ]
A. theirs; their
B. hers; his
C. your; mine
D. your; my