GMAT OG2019全新出炉，欧米GMAT整理逻辑新题并附上解析，欧米官网已经更新完毕啦→逻辑新题解析
580. 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 will be no higher this year 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?
A. The first is a claim that the argument challenges; the second is an explicit assumption on which that challenge is based.
B. The first is a claim that the argument challenges; the second is a judgment advanced in support of the main conclusion of the argument.
C. The first provides evidence in support of the main conclusion of the argument; the second is an objection that has been raised against that main conclusion.
D. The first provides evidence in support of the main conclusion of the argument; the second is a judgment advanced in support of that main conclusion.
E. The first and the second are each claims that have been advanced in support of a position that the argument opposes.
580题、609题、610题的材料是同一段话，都是boldface题，只有黑体句的位置不同。
题目大意
去年创造了一个新的制造业工作数量的记录。今年会带来另一个记录吗？新的工作是现有的公司或者新成立的公司创造的。在现有的公司里，创造的新工作低于去年的记录。同时，有一个应该考虑的证据表明今年新成立的公司数量不会比去年多，没有理由认为今年新成立的公司会比去年成立的公司创造更多的工作。所以显然今年的新工作数量会低于去年的记录。
解题思路
第一个黑体句说今年产生的新工作比去年的记录少，是一个论据。第二个黑体句说，没有理由认为今年新成立的公司能比去年成立的公司创造更多工作，也是论据，还是说今年比去年少，两句话方向一致。最后一句是结论，说今年的新工作低于去年的记录，前两句和结论说的都一样，所以都是支持结论的。选项里说到反对，挑战的都是错误的，所以答案选D。
答案：D