【名词&注释】
优先级(priority)、关键字、源程序(source program)、浏览器(browser)、破坏性(destructive)、分时系统(time-sharing system)、不正常、地址栏
[单选题]A(n) ______ is a destructive program that fills a computer system with self-replicating information,clogging the system so that its operations are slowed or stopped.
A. worm
B. macro
C. CIH
D. Trojan
B. 名字长度越短越好,以减少源程序的输入量 C. 选择含义明确的名字,以正确提示所代表的实体 D. 尽量用关键字作名字,以使名字标准化