问题 更新时间2023/4/3 12:59:00 A ____ is a variety of language that serves as a medium of communication among groups of people for diverse linguistic backgrounds. A.lingua francaa B.register C.Creolee D.national language 答案 登录 注册 参考答案:A 出自:联大 >> 信阳师范学院-英语语言学