职教组卷基于海量职教高考试题库建立的在线组卷及学习系统
职教组卷
  • 题型:英语知识运用 题类:历年真题 难易度:易

    It is estimated that 5G devices will be__________for commercial applications in China in 2020 with the issue of 5G licenses.(  )
    A. unique B. flexible C. mature D. delicate
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