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 Astheworldchangesfasterthenever,ourgreatestconcernisma...

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问题详情:

 Astheworldchangesfasterthenever,ourgreatestconcernisma...

 As the world changes faster then ever, our greatest concern is making sure that         of these changes do us harm .  

A. any    B. some    C. neither    D. none

【回答】

D

知识点:代词

题型:选择题

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