Last year a record number of new manufacturing jobs were created. Will this year bring another record? Well, any new manufacturing job is created either within an existing company or by the start-up of a new company. Within existing firms, new jobs have been created this year at well below last year's record pace. At the same time, there is considerable evidence that the number of new companies starting up this year will be no higher than it was last year and there is no reason to think that the new companies starting up this year will create more jobs per company than did last year's start-ups. So clearly, the number of new jobs created this year will fall short of last year's record.
In the argument given, the two portions in boldface play which of the following roles?
去年的工作岗位达到了新高。今年还会超过记录吗?因为新增的岗位来源于现有的公司和新建立的公司,而今年现有公司的岗位会比去年少。与此同时,没有证据说明今年新公司会提供比去年新公司多的职位。所以,今年的工作岗位会比去年的有所减少
1.B1是truth,DE对
2.B2支持文章观点,E对,D错,因为D最后一个词是OPPOSE