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. Over the last few years, the number of Kravonians enrolled in college has been growing steadily. Therefore, who have at least the qualification of a college degree will eventually be significantly higher than it has been over the last few years. Which of the following, if true, most seriously weakens the argument? A. Kravonians with more than one college degree earn little more, on average, than do Kravonians with only one college degree. B. The average number of years Kravonian college students remain enrolled before completing a degree has been increasing over the past several years. C. Despite the increase in the number of Kravonians attending college, the percentage of the population attending college is lower in Kravonia than in most other countries. D. In recent years, employers have been requiring college degrees for workers in jobs that were previously performed successfully by Kravonians who did not have college degrees. E. For many years, employers in Kravonia have had difficulty finding enough college graduates to fill the high-paying jobs that were available. 有没有好心的童鞋解释解释正确答案 ,选B。。。Thanks!! -- by 会员 疯愁怂狗子 (2011/10/27 17:54:41)
B is the best answer.
"students remain enrolled before completing a degree" indicates that although the number of students who went to college has increased, the number of students who got degree may not increase that much. That is to say, some students can remain in the college but don't graduate for some reasons, such as extending study. So the students go to work market may not increase... Is it clear enough? |