疑问副词（Interrogative Adverbs）是用来引导一个特殊疑问句的。疑问副词有how，when，where，why；这些词通常置于句首：
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Interrogative and Relative Adverbs 疑问副词和关系副词
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The thesis investigates the function of the interrogative adverbs by means of the syntax, semantic and pragmatic description, and with the methods of replacement and ellipsis etc.
本文通过句法、语义和语用描写，运用替换、省略等方法考察了反诘语气副词的功能。
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