题目内容

在差动放大电路的输入信号中，差模信号是有用的信号。差动放大器对共模信号具有较强的（）作用。

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试述蜘蛛痣与肝掌的临床意义。

SOX is an alternative（1）for XML. It is useful for reading and creating XML content in a（2）editor. It is then easily transformed into proper XML. SOX was created because developers can spend a great deal of time with raw XML. For many of us, the popular XML（3）have not reached a point where their tree views, tables and forms can completely substitute for the underlying（4）language. This is not surprising when one considers that developers still use a text view, albeit enhanced, for editing other languages such as Java. SOX uses（5）to represent the structure ofan XML document, which eliminates the need for closing tags and a number of quoting devices. The result is surprisingly clear.空白（3）处应选择（）

A. texts
B. editors
C. creators
D. tags

患者，李某，男性，71岁，原有"肺痨"，迁延不愈，出现咳吐浊唾涎沫，质粘稠，偶有咳痰带血，咳声不扬，口干咽燥，午后潮热，形体消瘦，舌红而干，脉虚数。其诊断为（）

A. 肺痈初期
B. 肺痨阴虚火旺证
C. 虚热肺痿
D. 肺痨气阴两虚证
E. 肺痨肺阴亏虚证

关于软件文档的叙述，（）是错误的。

A. 文档就是指软件的操作说明书
B. 文档是软件产品的一部分，没有文档的软件就不成为软件
C. 高质量文档对于软件开发、维护和使用有重要的意义
D. 测试用例也是重要的软件文档