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) ● (71 now plays a central role in the global economy.
(71)
A. Data
B. CPU
C. Information
D. Operation
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Which of the following is not a while-speaking activity?A.Describing people and events.
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B.Role-plays.
C.Exchanging information.
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Which of the following is not a while-speaking activity?A.Describing people and events．
B.Role-plays．
C.Exchanging information．
D.Reporting results．
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