Q12:
Which of the following most logically completes the argument?
The irradiation of food kills bacteria and thus retards spoilage. However, it also lowers the nutritional value of many foods. For example, irradiation destroys a significant percentage of whatever vitamin B1 a food may contain. Proponents of irradiation point out that irradiation is no worse in this respect than cooking. However, this fact is either beside the point, since much irradiated food is eaten raw, or else misleading, since _______.
A.many of the proponents of irradiation are food distributors who gain from food’s having a longer shelf life
B.it is clear that killing bacteria that may be present on food is not the only effect that irradiation has
C.cooking is usually the final step in preparing food for consumption, whereas irradiation serves to ensure a longer shelf life for perishable foods
D.certain kinds of cooking are, in fact, even more destructive of vitamin B1 than carefully controlled irradiation is
E.for food that is both irradiated and cooked, the reduction of vitamin B1 associated with either process individually is compounded
Somewhere the key is C; somethere the key is E. Need help!
Q31 I don't understand E so can not find any answer to it.
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 sensitivity to most components of dim light. Their retinal cells are also not excessively sensitive to red components of moderately 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 problems?
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 darkened concert hall, these people will see a dimly illuminated red exit sign more clearly than small dim white lights that mark the aisles.
C.These people typically see more acutely at night and in dim light than do most people who do not have the disorder.
D.Eyeglasses that are transparent to red components of light but filter out other components of light help these people see in moderately bright light.
E.These people perceive colors other than red in the same way as do most people who do not have the disorder.
Q12: 我选C。逻辑题最先要明白的问题是TOPIC的问题，即原文在讨论什麽问题，跟这TOPIC无关的通通是OUT OF SCOPE。
Q31: 我选D。 由原文看出这种眼疾有几种特征：1. 不能承受正常亮光。2. 在昏暗亮光下与正常人无异。3. 在正常亮光下对红色感光不强。1＋3＝D。一个能滤去除红色光外的所有其它光可以帮助被人在正常光下看东西。
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