DOM is a platform- and language- (65) 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 (66) . DOM is a (67) -based API to documents, which requires the whole document to be represented in (68) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (69) documents that do not fit into the memory available for processing.

69（）

A.XML 

B.HTML 

C.script 

D.Web

你是某个项目的财政控制。你的项目经理要求你向他提供一份有关未来12个月的项目成本预测报告。他需要了解这方面信息，以决定是否必要增加或减少这个重大建筑项目的预算。除了一些常规的信息来源，你还应该考虑以下哪一项？（）

A.类似项目的成本估算

B.工作分解结构（WBS）

C.项目进度计划

D.现有的变更申请