标题: 一道逻辑题 [打印本页] 作者: blanco123 时间: 2009-12-7 11:07 标题: 一道逻辑题 GWD-8-Q13: With a record number of new companies starting up in Derderia, and with previously established companies adding many new jobs, a record number of new jobs were created last year in the Derderian economy. This year, previously established companies will not be adding as many new jobs overall as such companies added last year. Therefore, unless a record number of companies start up this year, Derderia will not break its record for new jobs created.
Which of the following is an assumption on which the argument relies?
A. In a given year, new companies starting up create more new jobs on average than do previously established companies. B. The number of people seeking employment is no larger this year than it was last year. C. This year, the new companies starting up will not provide substantially more jobs per company than did new companies last year. D. reviously established companies in Derderia will be less profitable this year than such companies were last year. E. The number of jobs created in the Derderian economy last year was substantially larger than the number of jobs lost. 答案A说每一年比前一年提供的JOBS要多，正好符合假设啊。为什么选C啊？？？作者: allennuli 时间: 2009-12-7 11:35
A解释不了为什么今年新成立的公司必须比去年多。 假设去年成立10家新公司，平均每家招了10个职位，而如果今年只成立5家新公司，但是平均每家公司招了30个职位，那么结论就可能不成立了。 C选项，正好把这种可能性排除了，因此是正确的选项作者: blanco123 时间: 2009-12-7 12:49
哦，知道了，谢谢啊
reviously established companies in Derderia will be less profitable this year than such companies were last year.