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Railways R.R.C. (Allahabad) Solved Paper 1st Shift Held on 1-12-2013

  • question_answer
    10. Diphtheria and Polio can be prevented by?

    A) Using proper sanitation facilities

    B) Drinking boiled water

    C) Immunization with vaccines

    D) Taking healthy food

    Correct Answer: C

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