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One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points; October 10th

2016-10-10View Original

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Single-choice question: For a centrifugal water pump used in a PVC suspension polymerization system, if it is now used to transport liquids with a viscosity higher than that of water, such as dispersants, then the pump’s head will ( ). A. Decrease B. Increase C. Remain unchanged Answer: A. Decrease

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