以下叙述中错误的是"().
A. 用C语言编写的源程序不能直接在计算机上运行
B. C语言的可执行程序是由一系列机器指令构成的
C. 通过编译得到的二进制目标程序需要连接才可以运行
D. 在没有安装C语言集成开发环境的机器上不能运行C源程序生成的.EXE文件
以下叙述中正确的是()
A. C语言的基本组成单位是语句
B. C程序每一行只能写一条语句
C. 简单C语句必须以分号结束
D. C语句必须在一行内写完
What steps can help speed up the computer or at least determine why the computer is running slow?
A. Reboot
B. Free hard drive space
C. Software conflicts
D. Scan for malware
Which statements about virusesare true?
A. Your computer may run more slowly if it isinfected with one or more viruses.
B. You can run Trend Micro's free Housecall offline utility to scan for viruses.
C. You can run antivirus program to remove them.
D. You are recommended to install an antivirus program for active protection against viruses.