【正确答案】
B
【答案解析】[听力原文]32-35
In all economic systems today, most businesses of any size rely on one system of organization: the division of labor. This means that the workers are specialized. Each worker has a particular duty to perform as one part of the whole operation.
A good example of the division of labor is an assembly line in an automobile factory. One worker may install a door while another adds lights. Normally, workers stay in one place, and a conveyor belt moves the product to them. If one worker had the responsibility of producing an entire car, he or she might be able to complete one each year. By comparison, factories with assembly lines may produce an average of about thirty-five cars a years per worker.
The division of labor permits mass production, but it does have some disadvantages. For one thing, few people know or understand all aspects of an operation, In addition, mass production may be more efficient, but many workers complain that they get little job satisfaction from working on one small duty, day after day, To them, there is much more satisfaction in doing a job from beginning to end.
32. What does the speaker mean by the division of labor?