15.Smoking is one of the causes of cancer.killing millions of people each year. A.major B.similar C.commercial D.chemical 查看更多

 

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Smoking is one of the ________causes of cancer,killing millions of people each year.

A.major

B.similar

C.commercial

D.chemical

 

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Smoking is one of the ________causes of cancer,killing millions of people each year.


  1. A.
    major
  2. B.
    similar
  3. C.
    commercial
  4. D.
    chemical

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 Smoking is one of the ________causes of cancer,killing millions of people each year.

A. major  B. similar  C. commercial    D. chemical

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Smoking is one of the ________causes of cancer,killing millions of people each year.

A.majorB.similarC.commercialD.chemical

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