The author tries to show the types of semantic meaning such as all-inclusive nature, indefinite nature and illustrative nature of the interrogative pronouns in a non-interrogative situation.

• 非疑问用法研究包括：疑问代词在外素（特定格式或特定词语）或在内素（疑问代词本身特有的形式）影响下表现出的语义特征。