【Daily Topic】【HVAC Version 20170324】
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Participation reward: 2 Wealth. Correct reward: 8 wealth. Multiple-choice question: A central heating system is composed of ( ). A. The heat source and the users B. The heat source and the piping network C. The heat source, the piping network, and the users D. The piping network and the users C
C. It consists of heat sources, piping networks, and users
C. It is composed of a heat source, pipelines, and users. A central heating system is made up of (C). A. A heat source and users; B. A heat source and pipelines; C. A heat source, pipelines, and users; D. Pipelines and users
C. It consists of heat sources, piping networks, and users