题目
A.A
B.B
C.C
D.D
第1题
A.changing
B.deleting
C.scanning
D.replacing
第2题
A.When your computer is on, only RAM is used to store information.
B.When your computer is on, only disk drives are used to store information.
C.When your computer is off,only RAM is used to store information.
D.When your computer is off,only disk drives are used to store information.
第3题
One of the basic roles of computer security is to change your((73))regularly.
A.name
B.computer
C.password
D.device
第4题
A.When your computer is on, only RAM is used to store information.
B.When your computer is on, only disk drives are used to store information.
C.When your computer is off, only RAM is used to store information.
D.When your computer is off, only disk drives are used to store information.
第5题
A.to fix
B.fixing
C.fix
D.fixed
第6题
(74)
A.When your computer is on, only RAM is used to store information
B.When your computer is on, only disk drives are used to storinformation.
C.When your computer is off, only RAM is used to store information
D.When your computer is off, only disk drives are used to storinformation.
第7题
Anti- virus software protects your computer from viruses by(75)your computer's memory and disk devices.
A.deleting
B.changing
C.scanning
D.replacing
第8题
computer technology puts all the information ___your fingertips.
A、on
B、in
C、at
D、over
第9题
A.signal
B.chance
C.mark
D.measure
第10题
A.in
B.on
C.of
D.at
第11题
One of the basic rules of computer security is to change your(73)regularly.
A.name
B.computer
C.device
D.password
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