Viruses can be transmitted by.
A. Booting a PC from an infected mediu.
B. executing an infected program.
C. pirated software and shareware.
D. All of the above.
查看答案
Common routes for viurs infiltration incude.
A. floppy disks or other media that users can exchange
B. E-mail attachments
C. pirated software and shareware
D. All of the above
If a virus simply reproduces and has no cause for an attack phase, but it will still without your permission.
A. hide its own code
B. steal storage and pilfer CPU cycles
C. delete files
D. play music
古诗《游子吟》 要求：1、有感情地朗读古诗 2、为古诗配图
后天各种因素使体质具有( )
A. 可变性
B. 同一性
C. 复杂性
D. 普遍性
E. 相对性
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