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.
Make sure you have the _________ drivers for your computer hardware, especially the latest _______ drivers. Having out-of-date drivers can cause an assortment of issues, including __________performance.