【单选题】Directions: Each sentence has a word or phrase underlined. There are four words or phrase beneath each sentence. Choose the one word or phrase which would best keep the meaning of the original sentence if it were substituted for the underlined part. (每题10分,共10题) 1.The researchers explained that the study demonstrated when we are in a novel environment the brain partly remains alert so that humans can defend themselves against any potential danger. (CET6-2017.6)
发布时间:2024-06-01 17:14:30