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    Just as sound travels through the air in waves, electricity travels through the air in radio waves. A. what is called B. which is called C. what it is called D. which it is called 【查看更多】

     

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    Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.

    A. what is called   B. which is called    C. what it is called   D. which it is called

     

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    Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.


    1. A.
      what is called
    2. B.
      which is called
    3. C.
      what it is called
    4. D.
      which it is called

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    Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.

    A．what is calledB．which is calledC．what it is calledD．which it is called

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    Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.

    A. what is called　　　　　　　　　　　　　　　　　　　　　　   B.which is called

    C.what it called　　　　　　　　　　　　　　　　　　　　　　    D.which it is called

     

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    Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.

    A. what is called　　　　　　　　　　　　　　　　　　　　　　   B.which is called

    C.what it called　　　　　　　　　　　　　　　　　　　　　　    D.which it is called

     

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