DOM is a platform and language - (66) API that allows programs and scripts to dynamically access and update the content, structure and style of WWW documents (currently, definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incorporated back into the presented (67) DOM is a (68) -based API to documents, which requires the whole document to be represented in (69) while processing it. A simpler alternative to DOM is the event - based SAX, which can be used to process very large (70) documents that do not fit into the memory available for processing.
A．XML
B．HTML
C．script
D．Web
参考答案：A
解析： DOM是一个平台和语言——中立的API允许程序和脚本动态的存取和更新内容，构建和设计WWW文件(通常HTML和XML文件的定义是规格的一部分)。文件能被进一步处理并且被处理的结果能被合并到网页中。DOM是一个基于API到文件的树。