Necessary assumption. Use negation. If you negate C, you get: The group of inmates who chose to take college-level courses WERE already less likely than other inmates to commit crimes after being released. If so, these group of inmate are GOOD inmates to begin with, with or without the college-level course training. Therefore, the argument that allowing an inmate to take such courses in prison would decrease an inmate's chance of committing crimes after his or her release is false. Thus, C is the necessary assumption. -- by 会员 sdcar2010 (2011/2/6 3:05:34)
可是,如果将A也取非的话,变成 being able to take college-level courses while in prison is unlikely to deter anyone from a crime that he or she might otherwise have committed. 说上大学课不像是会阻止任何人犯罪,也是削弱了啊,为什么A错了呢? |