Question

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

D
【考点】动词词义辨析

根据句意：根据科学家研究，我们的精神气在22岁达到高峰值之后便从27岁开始下滑（decline）。differ不同；shrink缩水；fail失败、衰竭，均不符合语境，故排除。