There is support for inquiry levels that define how much content to bring back, and new inquiry levels can be added simply by configuring meta data.

提供了对查询级别的支持，可以定义返回的内容的数量，并且通过配置元数据即可添加新的查询级别。

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In writeHeader() you will see how to describe page layout and how to define header and footer content as static objects.

在 writeHeader() 中，您将看到如何描述页面布局以及如何将页眉和页脚内容定义为静态对象。

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In this section, you see how to define two new content roots; each root contains the hierarchy of pages for its virtual portal.

在本节中，您将看到如何定义两个新的上下文根，每个根包含其虚拟门户的页面层次。

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