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Practice questions on March 28, 2017; replies will earn 2–6 points (no scoring after the (** is displayed), thank you for your replies)

2017-03-28View Original

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Multiple-choice question: When the properties of crude oil change, it is necessary to adjust the operations of ( A ) first, and then make the necessary adjustments to the other towers. A. Initial distillation tower B. Atmospheric pressure tower C. Vacuum distillation tower D. Atmospheric pressure stripping tower

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