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标题: OG 13 101题。看不懂啊 [打印本页]

作者: crimsonflower 时间: 2013-2-27 12:03
标题: OG 13 101题。看不懂啊
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 _______.

Which of the following most logically completes the argument?

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。

为什么是E?

作者: M猫Fishoo 时间: 2013-2-27 13:25
我喜欢每题看完后自己把细节省去，考虑最主要的逻辑链

所以这题就是说对VB，irradiation不会太坏，（跟cooking比），however，。。。
前面说不会太坏，所以however就有说坏的了，而且是在VB这件事上。。。。
然后排除选项

E可以这么理解，假设irradiation损失45%，cooking损失50%，可是两个要一起来就95%啦，前面却没说，只是比重就轻的说比cooking好，误导视线

作者: crimsonflower 时间: 2013-2-27 13:54
谢谢猫猫的答复，但是还是不懂。
题目是比较irradiation 和cooking。但是 E是两个合起来的。题目并没有问irradiation和irradation+cooking哪个更好，而是只是比较irradiation和cooking。

我这么对题干的理解对吗？

作者: njubei07 时间: 2013-7-19 03:36

crimsonflower 发表于 2013-2-27 13:54
谢谢猫猫的答复，但是还是不懂。题目是比较irradiation 和cooking。但是 E是两个合起来的。题目并没有问ir ...

第一个是说，在不需要cooking的时候，你是没法比较R和C哪个更好，所以是beside the point；第二个情况，当需要cooking的时候，B1的减少是两者的混合，你分不清楚两者各自的权重，所以是misleading。

由于or else的限制，C选项方在这里就不对了，第二个情况讨论的是cooking是强制的情况

作者: ET游戏狂 时间: 2014-10-6 11:45

njubei07 发表于 2013-7-19 03:36
第一个是说，在不需要cooking的时候，你是没法比较R和C哪个更好，所以是beside the point；第二个情况， ...

你的回答终于让我理解了！赞！

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