题目内容
（请给出正确答案）
144 Make or buy decisions are usually made during the _____ phase of a project.
A. Conceptual
B. Development.
C. Implementation
D. Execution
E. Close-out
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“144Make or buy decisions are usually made during the _____ phase of a project. A.Conceptua”相关的问题
A、depth
B、breadth
C、revenue growth
D、focus
A、我已经额外订购了一些办公设备，包括一些新办公桌和一台台式电脑。
B、我正准备额外订购一些办公设备，包括一些新办公桌和一台便携式电脑
C、我正准备额外订购一些办公设备，包括一些新办公桌和一台台式电脑。
A、La réussite foudroyante.
B、Dans une vie fastueuse.
C、Se déguiser en une autre personne.
D、Faire toutes les bassesses.
One of the difficulties in building an SQL-like query language for the Web is the absence of a database(1)for this huge, heterogeneous repository ofinformation. However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure ofthese files. Thus, at the highest level of(2), every such document is identified by its Uniform Resource Locator (URL), a(3)and a text. Also, Web servers provide some additional information such as the type, length, and the last modification date of a document. So, for data mining purposes, we can consider the set of all HTML documents as a relation:
Document (url, title, text,type, length, modify)
Where all the(4)are character strings. In this framework, an individual document is identified with a(5)in this relation. Ofcourse, if some optional information is missing from the HTML document, the associate fields will be left blank, but this is not uncommon in any database.
A、"Ode to the West Wind"
B、"To a Skylark"
C、"The Cloud"
D、"Song to the Man of England"
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
