2. 外语
  3. Standby power is consumption of energy by electrical appliances even when they are plugged off. Whether a dehumidifier works or

Standby power is consumption of energy by electrical appliances even when they are plugged off. Whether a dehumidifier works or

admin2009-09-12  39
问题 Standby power is consumption of energy by electrical appliances even when they are plugged off.
Whether a dehumidifier works or not depends on the humidistat to what point it’s set.
选项 A、Y
B、N
C、NG
答案A
解析 由题干humidistat可定位到第二个小标题下第三段第二句A humidistat to humidity is what a thermostat is to temperature和第三句In other words，as the humidity in the area where the dehumidifier is running drops to a certain set-point，the machine will shut itself off until the humidity rises past that setpoint again．[精析] 类比处设题。本题考查除湿器的工作原理。文中将湿度设定器工作原理与温度设定器类比，指出当某一区域的湿度下降到设定的一点时，除湿器便会停止工作，等湿度增大超过该点时，除湿器重新开始工作。题干说法与原文相符。。原文通过类比的方法解释了除湿器的工作原理。
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大学英语四级

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