【单选题】
[217]用蒸汽加热的换热器E-223停用时___。
A. 不准先停物料入口
B. 不准先停物料出口
C. 不准先停蒸汽入口
D. 不准先停蒸汽凝液出口
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答案
A
解析
暂无解析
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[218]洗油罐V-961液位高时可排放到___。
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[219]新鲜碱罐TK-201顶的氮封用的N2纯度为___。
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[220]洗油注入裂解气压缩机各段入口的目的是___。
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[221]废碱系统的废碱液有腐蚀并带颗粒性物质最适合用___。
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[223]压缩机的注水用的是___。
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[224]高压锅炉给水作为注水经___冷却后进压缩机
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[225]废碱液中的黄油来自___。
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[226]一段吸入罐V-201罐顶安全阀PSV20001A/S排往___。
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[227]系统脱出水分最多的地方是___。
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[228]裂解气压缩机吸入罐联锁后的动作为___。
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[229]压缩机油系统润滑油泵使用的是___。
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[230]C-601-X1-TK1油箱采用___加热方式。
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[231]正常运行时裂解气压缩机(C-201)主密封气的来源___。
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[233]裂解气压缩机停车后,油路循环和隔离气的停用顺序___。
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[236]干气预分馏塔的位号是___
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[237]干气预分馏塔塔釜再沸器E-461的丙烯冷剂级别是___。
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[238]干气预分馏塔塔顶冷凝器的E-462的丙烯冷剂级别是___。
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[239]干气预分馏塔富乙烷气加热器E-465的加热介质是___。
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[240]干气预分馏塔分离出来的富乙烯气返回段间罐是___。
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[241]干气预分馏塔T-408的塔板数___。
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A. Because black cats look like witches.
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3___
A. People aged16 to 24 preferred listening to music most.
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4___
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1___
A. 4 hours.
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2___
A. At 8.
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3___
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4___
A. He can take the train to the old part of the city.
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1___
A. About an hour.
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A. More and more Americans spend over an hour getting to work.
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3___
A. Because gas prices are not high.
B. Because the commute is not tiring.
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D. Because he can have his favorite lifestyle.
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4___
A. Traffic jams.
B. Expensive housing.
C. Poorer life quality.
D. A tiring and boring trip.
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1___
A. She liked playing an interesting game.
B. She enjoyed seeing many of her old friends.
C. She enjoyed wearing her Halloween costume.
D. She liked the decorations in Jason's front yard.
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2___
A. None of her friends likes Jason.
B. None of Jason's guests is young.
C. She wants to go to Linda's party.
D. She went to Jason's party last year.
【单选题】
3___
A. The party will last four hours.
B. Six people will attend the party.
C. They will have huge bags of candy.
D. They will play a new game called Guess Who"