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.   roponents 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
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I chose C based on some of my own thoughts below. Feel free to correct me if I’m wrong.
Thanks.
I think the two parts connected by “either…or…” are close related, and therefore can be put together(integrated) to strengthen the author’s point. For example, we can say:
… However, this fact is both beside the point and misleading, since irradiated food is eaten raw, and irradiation serves to ensure a longer shelf life for perishable foods while cooking is usually the final step in preparing food for consumption.
How do you think about this line of thinking?
Maybe it’s a bit awkward and not so convincing. Let me try again.
Using C, we can switch the two parties following “either” and “or” without changing the meaning and the flow of the argument—
… However, this fact is either misleading, since much irradiated food is eaten raw, or else beside the point, since “cooking is usually the final step in preparing food for consumption, whereas irradiation serves to ensure a longer shelf life for perishable foods”.
Using E in the place of C in above sentences, on the other hand, would seem to be either intrusive ( coming out of nowhere) or too far-reaching.


[此贴子已经被作者于2004-11-12 15:23:32编辑过] |