The rear section of the brain does not contract with age, and one can continue living without intellectual or emotional faculties.
【正确答案】 D
【答案解析】本句中画线的词rear的意思是“后面的,后方的”,与它意思相近的词是back“后面的”。advanced“高级的,先进的”;growing“成长的”;front“前面的”都不符合句意,故选D。