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自本世纪90年代初期,德国电信发生了根本变化。由过去一家主要的国内网络运营商转变为一个在全球范围积极拓展业务的集团公司,并被视为在整个现代电信服务
Since the early 90s of this century, Germany Telecom has undergone fundamental changes. From a major domestic network operator in the past to a group company that aggressively expands its business globally and is seen as a leader in the entire modern telecommunications service