distractor

distractor
noun
  1. a person or thing that distracts
    分散注意力的人(或物)
    the visual channel is capable of being a powerful distractor.
    电视频道是非常能够分散注意力的。
    ■an incorrect option in a multiple choice question
    (多项选择题中的)错误选项
    four pictures, three of which are distractors.
    4幅画有三幅是错误的。
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