当前学科:大学英语1(高起专)
  • 题目: 单选题
    10.  (单选题) –Many people agree that _______ knowledge of English is _______ must in _______ international trade today.(本题2.0分)

      A、  a; /; an 

      B、  the; a; the

      C、  the; a; an

      D、  a; a; /

    答案: <查看本题扣1积分>

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