1. [单选题]Virus Security Software is designed to detect, eliminate or quarantine computer viruses before they are able to harm a computer or server networked system.
A. Anti
B. Invade
C. Inroad
D. Aggression
2. [单选题]图像数据压缩(image data compression)的主要目的是______。
A. 提高图像的清晰度
B. 提高图像的对比度
C. 提高图像的亮度
D. 减少存储空间
3. [单选题]The maxmum number of data that can be expressed by 8 bits is ______.
A. 64
B. 128
C. 255
D. 256
4. [单选题]在 Windows XP 资源管理器中的文件夹区域中,文件夹图标前标有“+”的,表示该文件夹中 () 。
A. 有文件
B. 没有文件
C. 有子文件夹
D. 没有子文件夹
5. [单选题]______ is nonprogram text embedded in aprogram to explain its form. and function to human readers.
A. Command
B. Compile
C. Comment
D. Statement