问题
单项选择题
Viruses can’t be transmitted by (74) and (75) is not a common route for virus infiltration.
A.pirated software
B.email attachments
C.anti - virus software
D.shareware
答案
参考答案:C
解析: 盗版软件、电子邮件附件以及文件共享都是计算机病毒传播的常用途径。