In developed countries, farm workers only a small section of the population.
A. pick up
B. make up
C. hold up
D. keep up
网友回答
A. pick up
(答案→)B. make up
C. hold up
D. keep up
解析:词义辨析题。 在发达国家农民占人口的一小部分。 A. pick up 捡起 B. make up 构成 C. hold up 举起 D. keep up 保持 根据句意选B