求教大家几道题，都是模考当中的，麻烦大家了： 1.People with a certain eye disorder are virtually unable to see in moderately bright light, which seems to them unbearably intense, since the cells of their retinas are overwhelmed by moderately bright light. These people do, however, show normal wensitivity to most components of dim light. Their retinal cells are also not excessively sensitive to red components of modertely bright light. The information above best supports which of the following hypotheses about people with the disorder described, if they have no other serious visual problem? a. in all moderately dim light in which people without the disorder can read large print, people with the disorder cannot read such print. b.in an otherwise dardened concert hall, these people will see a dimly illuminated red exit sign more clearly than small dim white lights that mark the aisles. c.eyeglasses that are transparent to red components of light but filter out other components of light help these people see in moderately bright light. （这一题为什么答案是C呢？） 2. A significant number of complex repair jobs carried out by ACE Repairs have to be rewored under the company's warranty. The reworked jobs are invariably satisfactory. When initial repairs are inadequate, therefore, it is not because the mechanics lack competence; rather, there is clearly a level of focused concentration that complex repairs require that is elicited more reliably by rework jobs than by first-time jobs. THe argument above assumes which of the following? a. there is no systematic difference in membership between the group of mechanics who do first-time jobs and the group of those who do rework jobs. b. there is no company that successfully competes with ACE Repairs for complex repair jobs. c. ACE Repairs's warranty is good on first-time jobs but does not cover rework jobs. d.ACE Repairs does not in any way penalize mechanics who have worked on complex repair jobs that later had to be reworked. e. there is no category of repair jobs in which ACE Repairs invariably carries out first-time jobs satisfactorily. （这道答案A。但是我是用排除法做出来的，其实感觉A也怪怪的－－！） | 
