问题
单项选择题
液体制冷剂在蒸发器中低温下吸收被冷却对象的热量而（）
A.液化
B.流化
C.汽化
答案
参考答案：C
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液体制冷剂在蒸发器中低温下吸收被冷却对象的热量而（）
A.液化
B.流化
C.汽化
参考答案：C
| 任务型阅读“低碳生活，从我做起!”请仔细阅读下列材料，找出以下五种“低碳”行为产生的直接效应。 | |
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| 1. Henry often recycles water to clean his room and water the flowers. 1 2. Daphne always turns off' the lights and the computer as soon as she leaves her office. ___2__ 3. Mr White sometimes goes to work by bus or on foot instead of driving his car. __3__ 4. Li Lei usually uses QQ or e-mail to communicate with his friends instead of paper letters. _4__ 5. Miss Zhang never wears fur(皮草) clothes and she decides to eat less meat . __5__ |