Until recently, body heat has caused problems because it ______. The phrase "heat recovery" refers to a ______.

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问题 Until recently, body heat has caused problems because it ______.
The phrase "heat recovery" refers to a ______.

选项 A、method of concealing the source of heat
B、special form of air conditioning
C、supplementary hot water system
D、way of reclaiming and re—using heat

答案D

解析 回收再利用热能。此题考察学生对全文的总结能力,以及re claim和re—use的词义。
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