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Gaokao Chemistry Practice Question

下列应用中涉及到氧化还原反应的是

  1. A.使用明矾对水进行净化
  2. B.雪天道路上撒盐融雪
  3. C.暖贴中的铁粉遇空气放热
  4. D.荧光指示牌被照发光

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