请大牛解释一道逻辑题

ving88 · 发表于 2010-3-13 14:31:00

93. The efficiency of microwave ovens in destroying the harmful bacteria frequently found in common foods is diminished by the presence of salt in the food being cooked. When heated in a microwave oven, the interior of unsalted food reaches temperatures high enough to kill bacteria that cause food poisoning, but the interior of salted food does not. Scientists theorize that salt effectively blocks the microwaves from heating the interior.

Which one of the following conclusions is most supported by the information above?

A.The kinds of bacteria that cause food poisoning are more likely to be found on the exterior of food than in the interior of food.

B.The incidence of serious food poisoning would be significantly reduced if microwave ovens were not used by consumers to cook or reheat food.

C.The addition of salt to food that has been cooked or reheated in a microwave oven can increase the danger of food poisoning.

D.The danger of food poisoning can be lessened if salt is not used to prepare foods that are to be cooked in a microwave oven.

E.Salt is the primary cause of food poisoning resulting from food that is heated in microwave ovens.

答案是D 想问C哪儿不对

dengyichao · 发表于 2010-3-13 15:32:39

C说的是给已经在微波炉里处理过的食物加盐可以增加食物中毒的危险性。

hughlv · 发表于 2010-3-13 16:47:07

题目中的关键信息是细菌导致食物中毒，盐只是被发现阻碍了微波炉的杀菌作用。同ls所说，对已经从微波炉拿出来的食物加盐并不会对细菌的多少产生影响，所以C是错的。

alwynzhang · 发表于 2010-3-15 01:21:58

这是一道LSAT题
考的其实是语法的理解
C和D得区别就在于一个是HAS BEEN COOKED一个是TO BE COOKED，看清楚这个就不难理解了。

请大牛解释一道逻辑题

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