题目
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1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2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3题
第4题
He cannot be tired _______ he has walked only half a mile.
A:since
B:whether
C:when
D:as long as
第5题
第6题
Since ancient times, the value of chicken soup______
A.has been over-estimated
B.has been widely acknowledged
C.has been appreciated only by philosophers
D.has been known only to mothers
第7题
第8题
A.late
B.never
C.since
D.hardly
第9题
A.should test only opinions
B.has hanged since the Middle Ages
C.should always be written
D.is given only in factories
第10题
A.Snapshot
B. Incremental
C. Copy
D. Differential
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