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प्रश्न
Given below are some of the things that are necessary for achieving good health. Identify the wrong one.
विकल्प
Vaccination against infectious diseases
Control of vectors
Disposal of wastes
None of these
MCQ
उत्तर
None of these
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
