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    Through a number of experiments, Marie Curie found a new chemical Radium(镭), which is later widely used for cancer treatment. A. substance B. matter C. object D. thing 【查看更多】

     

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    Through a number of experiments, Marie Curie found a new chemical ________ -Radium(镭), which is later widely used for cancer treatment．


    1. A.
      substance
    2. B.
      matter
    3. C.
      object
    4. D.
      thing

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    Through a number of experiments, Marie Curie found a new chemical ________ -Radium(镭), which is later widely used for cancer treatment．

    [　　]
    A．

    substance

    B．

    matter

    C．

    object

    D．

    thing

    查看答案和解析>>


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