中国大学MOOC: Within a fraction of a second, web search engines perform the ______ impossible task of responding accurately to queries about anything.
举一反三
- Web search engines store information about many web pages which are retrieved if by a spider.
- 中国大学MOOC: Which are the most commonly used search engines when searching for information about a conference?
- It is impossible for us to _______ such a difficult task within the limited time.
- It is impossible for us to ____ such a difficult task within the limited time.
- 中国大学MOOC: The second truth is that the dissatisfaction arises within us.