【单选题】Pirated compact disks and floppy disks remained the second biggest vehicle for the spread of computer viruses despite the governments' determined efforts to quash software piracy.
A．boost
B．prevent
C．crush
D．restrict
【单选题】Pirated compact disks and floppy disks remained the second biggest vehicle for the spread of computer viruses despite the governments' determined efforts to quash software piracy.
A．boost
B．prevent
C．crush
D．restrict
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