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[主观题]
Which of the following about a computer virus is not true? A.It is a piece of software whose purpos
Which of the following about a computer virus is not true?
A.It is a piece of software whose purpose is to replicate.
B.It is a program that gains control over its host in various ways.
C.It all contains code which won't be activated without a trigger mechanism.
D.It sometimes attaches to a file.
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