[求助]费费逻辑93：C,D 有什么区别？

frankliny

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：D

深海的小美人鱼

题目是Which one of the following conclusions is most supported by the information above?
结论:  salt effectively blocks the microwaves from heating the interior.
DThe danger of food poisoning can be lessened if salt is not used to prepare foods that are to be cooked in a microwave oven.
C 里面说加盐的食品微波加热后会中毒.文中坷没有确定地说. 文中只是说salt effectively blocks the microwaves from heating the interior.
got it?

frankliny

我觉得不是这样，C是说加盐增加食物中毒的危险，D是说不加盐减少食物中毒的危险。人家没说“加盐的食品微波加热后会中毒” as you said. 还是看不出C 和 D 的根本区别。

browse

注意时态，C是说在被微波加工过后的食物中放盐会增加中毒的可能性。

以下是引用frankliny在2003-11-28 2:23:00的发言：
我觉得不是这样，C是说加盐增加食物中毒的危险，D是说不加盐减少食物中毒的危险。人家没说“加盐的食品微波加热后会中毒” as you said. 还是看不出C 和 D 的根本区别。

frankliny

没错，是这样。多谢

Snazzy

The passage tells people salt effectively block heat from reaching the interior of food cooked in teh microwave oven, thus it's difficult to kiss bacteria what cause food poisoning. Therefore, unsalted food cooked in the microwave oven will have less chance for food poisoning. Choice D is right.