[阅读理解]

【题干】WebSQL 是一种能从 web 中提取信息的类似 SQL 的查询(query) 语言。 WebsQL 具有
从 Web 超文本(Hypertext) 执行导航的能力， 这使它成为一个非常有用的工具，
可以自动处理多个与 Web 相关的任务。 这些任务要求一页(page) 中所有链接能被
系统地处理， 所有的页面都能通过一个给定的 URL 到达， 这 URL 是通过模式匹配
或两者结合的路径(paths) 得到的。 WebSQL 还提供了通过通用网关(Gateway) 接
口来透明地访问索引服务器的功能。
MIDI enables people to use (11) computers and electronic musical
instruments. There are actually three components to MIDI, the
communications" (12) . ", the Hardware Interface and a distribution
(13) called "Standard MIDI Files". In the context of the WWW, the most
interesting component is the (14) Format. In principle, MIDI files
contain sequences of MIDI Protocol messages. However, when MIDI Protocol
(15) are stored in MIDI files, the events are also time-stamped for
playback in the proper sequence. Music delivered by MIDI files is the most
common use of MIDI today.

【题目】15.A. messages
B. packets
C. frame
D. information

1、[多选题]Middleware lies in

• A、the top of an operating system
• B、the middle of the layering vertical stack
• C、the middle of interactions between different application programs
• D、the top of the layering vertical stack

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2、[多选题]What make it is difficult to agree on how to count viruses?

• A、new virus arise from an existing virus
• B、some viruses can use polymorphic technique
• C、just a trivial change may creaｔe a new virus
• D、some viruses can creaｔe different versions when they infect other programs

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3、[多选题]Information stored in semiconductor RAM is

• A、volatile
• B、permanent
• C、non volatile
• D、non permanent

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4、[多选题]()is a type of eｘecutable file.

• A、EXE file
• B、COM file
• C、JPG file
• D、TXT file

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5、[多选题]Active Directory can help you().

• A、manage every resource with a single logon
• B、build a complex international network
• C、get off the limits of down level networks
• D、deliver complete enterprise security by itself

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