It is said that older people who are eaters of fish during their youth lose fewer brain cells.
A. special
B. regular
C. mon
D. proper
网友回答
A. special
(答案→)B. regular
C. mon
D. proper
解析：句意：据说在年轻的时候，常吃鱼的老年人失去的脑细胞要少。special特别的，专门的；regular定期的，有规律的；mon共同的；proper适当的。根据句意故选B。