Using your question, a special keyword along with your search term will bring up an Instant Answer.
在你的问题里，搜索词中一个特定关键字将会带来即时答案。
When asking yourself how quickly you need to achieve a quality rank, and the answer is "NOW!" then stop doing keyword research for SEO and start building out lists for a great PPC campaign.
如果你问自己希望多快能够获得一个比较令人满意的排名，而回答是“现在！”那么，让我们停止做SEO的关键字研究转而开始建立一个伟大的PPC活动列表。
This paper mainly focuses on question analysis and answer extraction. Question analysis includes question classification, keyword extraction and keyword expansion.
本文主要研究了问答系统的问题理解与答案抽取两个部分。
This paper mainly focuses on question analysis and answer extraction. Question analysis includes question classification, keyword extraction and keyword expansion.
本文主要研究了问答系统的问题理解与答案抽取两个部分。
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