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1. Germ Theory of Disease প্রতিষ্ঠিত করেন কে? -

  • A. A.V. Leeuwenhoek
  • B. A.V. Leeuwenhoek
  • C. A.V. Leeuwenhoek
  • D. A.V. Leeuwenhoek

Answer: Option D

Explanation:


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