Question

【题目】According to scientists, our mental abilities begin to _____ from the age of 27 after reaching the highest level at 22.
A.differ
B.shrink
C.fail
D.decline

Answer 1

【答案】D
【解析】句意：据科学家研究表明，我们大脑的能力在22岁左右达到最高，从27岁开始逐渐消退。A. differ“不同”；B. shrink “缩水”；C. fail“失败，失灵”；D. decline “衰退，下降，吸引”。根据句意，选D。