问答题

A modern manufacturing ( 生产) system is surely high tech. High tech became a popular expression in the United states during the early 1980’s. (Passage 3 )

【参考答案】

一个现代化的生产系统肯定是“高科技的”，“高科技”在20世纪80年代初期的美国已经是一个流行的词语了。
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