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【Daily Topic】【HVAC Version 20170613】

2017-06-13View Original

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Participation reward: 2 Wealth. Correct reward: 6 wealth. Multiple-choice question: The flow rate of the hot water boiler and make-up water pump should be determined based on the normal make-up water volume for the hot water system as well as the make-up water volume required in emergency situations; it should be ( ) times the normal make-up water volume. A.2–3 B.3–4 C.4–5 D.5–6 C

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