搜题请搜索小程序“爱下问搜题”
问题 单项选择题

Windows 98采用了虚拟存储技术以扩展可用的内存。在下列文件中，由Windows 98创建和管理的、用于扩展内存的交换文件是

A．Win386.swp

B．Buffer.sys

C．Hiberfil.sys

D．Config.sys

答案

参考答案：A

解析： 该题考查考生对Windows 98虚拟存储技术的理解。在Windows 98中，交换文件的文件名为Win386.swp，它的默认位置是 Windows的安装文件夹，Win386.swp是不能删除的，即使强行删除了，下次启动时系统又会自动生成该文件，所以应该选择A。

单项选择题

Melissa and LoveLetter made use of the trust that exists between friends or colleagues.Imagine receiving an （） from a friend who asks you to open it. This is what happens with Melissa and several other similar email （） . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages （） . As administrators seek to block dangerous email attachments through the recognition of well-known （） , virus writers use other extensions to circumvent such protection.Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users. Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the （） access to your network.

Melissa and LoveLetter made use of the trust that exists between friends or colleagues.Imagine receiving an （） from a friend who asks you to open it.

A．attachment

B．packet

C．datagram

D．message
查看答案
填空题

有四组物质，它们的沸点(℃，P=1. 01×105Pa)如下表所示

试根据上表回答下列问题：

(1)物质b的分子式为：__________，物质____（填“a”或“b”）易溶于苯。

(2)除极少数情况外，上述四种系列中物质的沸点与相对分子质量之间均存在一定的关系，该关系是

_________。

(3)上表中，_________和_________两种物质的沸点较同系列其他物质反常，反常的主要原因是__________________。
查看答案