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问题 单项选择题

Windows 98启动完成后所显示的整个屏幕称为( )。

A． 页面

B． 浏览器

C． 视图

D． 桌面

答案

参考答案：B

解析：Windows启动后，显示的整个屏幕称为桌面。桌面上可以放置图标、菜单、窗口和对话框等。

单项选择题

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (6) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (7) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages (8) .

As administrators seek to block dangerous email attachments through the recognition of well-known (9) , 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 (10) access to your network.

（9）是（）

A.names

B.cookies

C.software

D.extensions
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单项选择题

人体实验的道德原则，不包括

A．有利于医学和社会发展
B．必须实事求是
C．维护受试者利益
D．严谨的科学态度
E．受试者知情同意
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