[求助]GWD5-Q30 冰天雪地跪求解答-->aeoluseros转移

librahjx

求助]GWD5-Q30

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（离题）, 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

不是很理解，为什么E是midleading？

谢谢！

aeoluseros

楼主发错地方了。。。

原话说irradiation不好比如会杀VB1，proponents of irradiation说cooking也要杀这么多VB1的。而结论是反对proponents of irradiation的，反对在两个方面，一个是proponents的理由可能是无关的，因为有些东东根本即不用cooking,所以irradiation和cooking破坏VB1的量自然也无从比较，另一个方面是对于要经过两道工序irradiation和cooking的食品，仅仅比较irradiation说cooking就会误导人们，使之觉得irradiation一下是不要紧的，但事实上两道工序的负效果会加成会杀掉更多的VB1。

reallingling

很容易排除ABC

至于D比较容易排除，因为however是一个转折，也就是所要表达的语义和之前一句肯定相反，而D表达的语义和之前一句语义相同，并不相反，所以d不对。

librahjx

谢谢！！！

blackTshirt

原文的结论是：反对Proponents of irradiation point out that irradiation is no worse in this respect than cooking，只有E说明不确定B1在那个过程中损失更多，所以削弱结论中辐射会比cooking损害更多的B1。

也只有E是将辐射和cooking联系起来的，其他的选项不是无关就是比较的程度不对等（D）。

Powellyao

ding

audreyzhang2

understand~ thx for all!