【Daily Question】Production, Storage, and Transportation - 9.14
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This post was last edited by juy7fgr5 on 2019-9-14 at 12:48. It’s part of the Daily Question series in the Production, Storage, and Transportation forum; answering it correctly earns 5 wealth points； Effective participation grants 2 units of wealth ； A special bonus will be given to the first person who provides a correct explanation. Multiple-choice question: The valve in which the closing element moves along the center line of the valve seat channel is ( ). A. Gate valve B. Globe valve C. Ball valve D. Butterfly valve B
Stop valve; wish the original poster a happy Mid-Autumn Festival.