We are really lucky because we are ______ the most important scientific development of the century.

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问题 We are really lucky because we are ______ the most important scientific development of the century.

选项 A、witnessing
B、reviewing
C、interviewing
D、previewing

答案A

解析 这句话的意思是说,我们真是幸运,因为我们见证了本世纪最重要的科技发展。(A)witness见证;(B)review复习;(C)interview面试;(D)preview预告,试演。
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