QA research attempts to deal with a wide range of question types including: factoid, list, definition, how, why, hypothetical, semantically-constrained, and cross-lingual questions.
问答系统的研究试图使系统能回答较宽范围的问题，包括：事实、列举、定义、方式、原因、假设、语义约束和跨语言类型的问题。
QA research attempts to deal with a wide range of question types including: factoid, list, definition, how, why, hypothetical, semantically-constrained, and cross-lingual questions.
问答系统的研究试图使系统能回答较宽范围的问题，包括：事实、列举、定义、方式、原因、假设、语义约束和跨语言类型的问题。
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