What part of the museum flooded?

admin2011-01-08  41

问题 What part of the museum flooded?
  
Dozens of valuable paintings and frescoes were badly damaged when rainwater poured through a roof at the state museum. As freak rainstorms lashed in the central and southern sections of the state, part of the museum’s roof which was scheduled to be repaired collapsed and water cascaded into two storerooms.
A heater is using convection when it warms the air in a room. And the air in turn warms the people and objects in the room. A hot water radiator, a stove and forced air furnace are all convection heaters. A quartz heater, on the other hand, heats the objects and people in a room without heating the air. It does this by producing radiation heat that travels like light waves. The radiation is then directed at objects by means of a reflector.

选项 A、It heats only the objects in a room.
B、It is lighter in weight.
C、It heats the room quicker.
D、It is more common.

答案A

解析 识别信号词有助于迅速解题。文中谈到几种传统的散热器后使用了短语on the other hand这个表对比的词组来介绍石英散热器,由此可推测该物与前面提到的散热器肯定不同,通过背景常识,可帮助我们迅速猜测选项A有可能是正确答案。
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