举一反三
- The static flow chart of DCS in alkaline washing tower includes ( ) A: alkaline washing tower T_51501 B: Regulator FV_51503 C: Feed valve XV51501 D: discharge pump P_5101
- Engine system includes __________________, starting system, __________________ cooling system, fuel supply system, crank-connection rod mechanism and __________________.
- each series section of a series pipeline A: head loss equal B: total energy loss equal C: hydraulic gradient equal D: flow rate equal
- The oil pump, oil filter and oil pan, make up the _____of the engine. A: ignition system B: fuel system C: lubricating system D: cooling system
- In a refrigeration system, if the cooling water to the condenser fails, the（）. A: box temperature solenoid valve will close B: expansion valve will close C: compressor will shutdown D: king valve will ope
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中国大学MOOC: The section of business always includes technological news.
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A pump may simply provide the liquid with an increase in energy<br/>enabling it to flow or build up a pressure. What does “it”<br/>in the sentence above refer to?() A: A pump B: The liquid C: Energy D: An increase
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The budget of a research proposal consists of __________. A: a section details the amount of cost of equipment and service B: a section provides the justification for the funding requested for reviewers to check and see if it is reasonable C: a section includes a list of the preliminary references you have studied or consulted D: a section shows key milestones in your writing
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The financing activities section of the statement of cash flows includes paying dividends and paying off loans.()
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A ____ is mounted on the lube oil cooler which senses the temperature of the lubricating oil and regulates the flow of either the lubricating oil or the cooling water accordingly. A: magnetic switch B: regulator C: thermostatic valve D: expansion valve