The doctor told him to take a fat-free . A. foodB. dietC. healthD. vegetable

问题补充：

The doctor told him to take a fat-free .

A. food

B. diet

C. health

D. vegetable

答案：

A. food

(答案→)B. diet

C. health

D. vegetable

解析：考查名词词义辨析。按照句意：大夫让他进行无脂饮食疗法。此处指维持健康的特定饮食。故答案选B。