正确答案: D

使用4对线路进行信号传输

题目：关于adsl，以下()。种说法是错误的

解析：D

查看原题

举一反三的答案和解析：

[单选题]

B． omitting C． killing D． eliminating

deletingB． omitting

解析：解析：deleting：删除

[单选题]Due to a constantly(66) environment, a poor understanding of the user's needs and preferences, as well as a(67) of willingness to modify.(68) organizational structures and decision models, the full economic potential of Web Information Systems (WIS) has not been realized by now. The data object types of the(69) meta. model, the Extended World Wide Web Design Technique (eW3DT), provide hypertext designers(70) a conceptual, user-centric framework and graphical notation for the construction of both,(71) and customized models, during the software development(72) of commercial WIS. A reference model as a normative concept represents an abstraction of a(73) company, its functional units, or its Web Information System and is intended to streamline the design and implementation of complex applications at(74) costs. As precondition for pursuing a partial globalization strategy,eW3DT(75) between technical and content-specific responsibilities for designing, implementing, and maintaining WIS.

changing

[单选题]______是面向对象程序设计语言中的一种机制，这种机制实现了方法的定义与具体的对象无关，而方法的调用则可以关联于具体的对象。

动态绑定(Dynamic Binding)

解析：解析：继承是父类和子类之间共享数据和方法的机制。这是类之间的一种关系，在定义和实现一个类(子类)的时候，可以在一个已经存在的类(父类)的基础上进行，把这个已经存在的类所定义的内容作为自己的内容，并加入若干新的内容。

[单选题]在执行测试和评价的过程中，会产生较多的文档，(43)是对文档内容的正确描述。①评价需求的主要内容是描述评价的目标，特别是描述了产品的质量需求。

①④

解析：解析：本题考查对测试和评价的过程中产生的文档的理解。