！！逻辑笔记中的一题有疑问！

长岛冰茶903

116.

In Kravonia, the average salary for jobs requiring a college degree has always been higher than the average salary for jobs that do not require a degree. Current enrollments in Kravonia's colleges indicate that over the next four years the percentage of the Kravonian workforce with college degrees will increase dramatically. Therefore, the average salary for all workers in Kravonia is likely to increase over the next four years.

Which of the following is an assumption on which the argument depends?

A. Kravonians with more than one college degree earn more, on average, than do Kravonians with only one college degree.

B. The percentage of Kravonians who attend college in order to earn higher salaries is higher now than it was several years ago.

C. The higher average salary for jobs requiring a college degree is not due largely to a scarcity among the Kravonian workforce of people with a college degree.

D. The average salary in Kravonia for jobs that do not require a college degree will not increase over the next four years.

E. Few members of the Kravonian workforce earned their degrees in other countries.

答案选C， 可C明明是削弱结论啊。并不是an assumption on which the argument depends啊，难道是结论中的likely应该为unlikely?

长岛冰茶903

呜呜呜呜呜呜呜

lhz910216

lz还是仔细读读~C选项是not due to 不是due to
只有在C的前提下，the percentage of the Kravonian workforce with college degrees will increase dramatically才不会同时导致average pay for the Kravonian workforce with college degrees下降，才支持结论the average salary for all workers in Kravonia is likely to increase over the next four years