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Gaokao Chemistry Practice Question

化学与人体健康及环境保护息息相关。下列叙述正确的是

  1. A.食品加工时不可添加任何防腐剂
  2. B.掩埋废旧电池不会造成环境污染
  3. C.天然气不完全燃烧会产生有毒气体
  4. D.使用含磷洗涤剂不会造成水体污染

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