题目内容

A.forB.byC.to

A. for
B. by
C. to

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The TapeStare system is popular with big companies because

A. it costs less than a human operative.
B. the information it stores is valuable.
C. they know that their data is safe.

A.dayB.weekC.year

A. day
B. week
C. year

A.withB.toC.for

A. with
B. to
C. for

A.ofB.inC.by

A. of
B. in
C. by

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