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    -What are you busy with? - We are carrying out a research the causes of cancer. A. into B. onto C. to D. in 【查看更多】

     

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          ---What are you busy with ?

    --- We are carrying out a research ____ the causes of cancer.

    A．into

    B．onto

    C．to

    D．in

     

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    ---What are you busy with ?
    ---We are carrying out a research ______ the causes of cancer.


    1. A.
      into
    2. B.
      onto
    3. C.
      to
    4. D.
      in

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    ---What are you busy with ?

    --- We are carrying out a research _______ the causes of cancer.

    A. into           B. onto            C. to              D. in

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             ---What are you busy with ?

    --- We are carrying out a research ____ the causes of cancer.

    A. into    B. onto   C. to   D. in

    查看答案和解析>>

    ---What are you busy with ?

    --- We are carrying out a research ____ the causes of cancer.

    A. into    B. onto   C. to   D. in

     

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