2. 外语
  3. Electrical ______ such as toasters or hair dryers are designed to take advantage of the ability of an electric current to heat a

Electrical ______ such as toasters or hair dryers are designed to take advantage of the ability of an electric current to heat a

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问题 Electrical ______ such as toasters or hair dryers are designed to take advantage of the ability of an electric current to heat a fire.
选项 A、devices
B、appliances
C、apparatus
D、instruments
答案B
解析 近义词辨析。device意为“设计，装置，发明物”，指工具有实用性，如：a device for opening bottles (一个打开瓶子的装直)；appliance意为“用具，器具”，指设计用来执行特殊功能的装置或器具，尤指家庭用的电器设备等，electrical appliance指“家用电器”；apparatus意为“机械，设备”，指相连接的机器、导线等系统，如：apparatus for“lighting the stage(舞台照明设备)；instrument意为“工具，器具”，指用于精密技术操作的器械，如：air monitoring instrument(大气监测仪器)。题中指的是家用电器，故应选B)。
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大学英语四级

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