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    22．- What should I do before operating the new machine? - You’d better read its first carefully. A．explanations B．instructions C．descriptions D．introductions 【查看更多】

     

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    — What should I do before operating the new machine?

    — You’d better read its ______ first carefully.

    A．explanations     B．instructions      C．descriptions      D．introductions

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    --- What should I do before operating the new machine?
    --- You’d better read its ______ first carefully.


    1. A.
      explanations
    2. B.
      instructions
    3. C.
      descriptions
    4. D.
      introductions

    查看答案和解析>>


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