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Gaokao Chemistry Practice Question

古籍《天工开物》收录了井盐的生产过程。其中 “汲水而上, 入于釜中煎炼, 顷刻结盐, 色成至白” 的描述, 涉及的物质分离操作为

  1. A.趁热过滤
  2. B.萃取分液
  3. C.常压蒸馏
  4. D.浓缩结晶

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