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One question per day, the correct answer will be rewarded with 6 wealth, and the participant will be rewarded with 2 wealth; January 4

2017-01-04View Original

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multiple choice questions: In the calcium carbide method vinyl chloride distillation system, the function of the solid alkali dryer is ( ) A. To remove the moisture in the VCM monomer B. To remove iron ions and other impurities in the VCM monomer C. To remove the low boiling matter and high boiling matter in the monomer D. To remove the acidic solution in the monomer Answer: ABD

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