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    When you do exercises, your heart works better. It is able to more blood while beating more slowly. A. produce B. pump C. increase D. bump 【查看更多】

     

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    When you do exercises, your heart works better. It is able to______ more blood while beating more slowly.


    1. A.
      produce
    2. B.
      pump
    3. C.
      increase
    4. D.
      bump

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    When you do exercises, your heart works better. It is able to______ more blood while beating more slowly.

    A. produce                     B. pump                       C. increase                    D. bump

    查看答案和解析>>

    When you do exercises, your heart works better. It is able to______ more blood while beating more slowly.

    A. produce   B. pump    C. increase   D. bump

    查看答案和解析>>

    When you do exercises, your heart works better. It is able to______ more blood while beating more slowly.

    A. produce　　　 B. pump　　　　　　 C. increase　　　　 D. bump

     

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