To select a topic, use the UP or DOWN arrow keys.

若要选择一个主题，请使用向上键或向下键。

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For example letting the user select a topic or only presenting articles based upon certain user attributes is impossible or very impractical.

例如让用户选择一个主题，或只根据特定用户的属性来显示文章是不可能实现的，或者非常不切实际的。

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Select a default topic.

选择一个默认主题。

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While a select few recognized the skyrocketing costs and growing risks that digital information represent in eDiscovery, the topic did not achieve mainstream recognition until at least 2008.

FORBES: Information Governance Even More Important In The Era Of Big Data