单选题
公共英语三级
2011-08-17
What is a "benign" virus?
A． It is a virus that causes great damag
B． It is a virus that once infected the IBM's computer syste
C． It is a virus that carries a Christmas greetin
D． It is a virus that causes no harm to the computer system
参考答案
D
答案解析
暂无解析
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A． It can cause no damages at al
B． It can cause damages to the computer system
C． It can copy your files in computer
D． It can format your hard driv
