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Gaokao Chemistry Practice Question

下列物质属于弱电解质的是

  1. A.$\mathrm{CO}_{2}$
  2. B.$\mathrm{H}_{2} \mathrm{O}$
  3. C.$\mathrm{HNO}_{3}$
  4. D.$\mathrm{NaOH}$

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