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【Daily Topic】【HVAC Version 20170304】

2017-03-06View Original

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Participation reward: 2 Wealth. Correct reward: 8 Wealth. Multiple-choice question: When an air conditioning duct passes through the enclosure of the air conditioning room, the gaps around the opening must be filled tightly. The reason for this is ( ). A: Prevent air leakage B: Avoid temperature drops C: Protect the air conditioning ducts D: Reduce vibration D

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