摘要： 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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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
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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