In 1988 services moved ahead of manufacturing as the main product of the United States economy. But what is meant by "services" ? Some economists define a service as something that is produced and consumed simultaneously, for example, a haircut. The broader, classical definition is that a service is an intangible something that cannot be touched or stored. Yet electric utilities can store energy, and computer programmers save information electronically. Thus, the classical definition is hard to sustain.
The United States government’s definition is more practical: services are the residual category that includes everything that is not agriculture or industry. Under this definition, services includes activities as diverse as engineering and driving a bus. However, besides lacking a strong conceptual framework, this definition fails to recognize the distinction between service industries and service occupations. It categorizes workers based on their company’s final product rather than on the actual work the employees perform. Thus, the many service workers employed by manufacturers— bookkeepers or janitors, for example—would fall under the industrial rather than the services category. Such ambiguities reveal the arbitrariness of this definition and suggest that, although practical for government purposes, it does not accurately reflect the composition of the current United States economy.
The passage suggests which of the following about service workers in the United States?
A 低估是因为被归入工业而不是服务业，正确 B/C 段落定位错误，1988 出现在第一段 D/E most 不等于many
好好进行原文的定位 注意看文章 原文说的是被工厂雇佣的服务人员被政府的定义划在工业中 所以服务业的人员被低估
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