section 5 逻辑题问 感谢

ssh

Although nondairy coffee lighteners made with coconut oil contain 2 grams of saturated fat per tablespoon, or 7 times more than does whole milk, those lighteners usually contain no cholesterol. Yet one tablespoon of such lighteners causes the consumer’s blood cholesterol to rise to a higher level than does an identical amount of whole milk, which contains 2 milligrams of cholesterol per tablespoon.

8. Which one of the following, if true, contributes most to an explanation of the apparent discrepancy noted above?

(A) Nutritionists recommend that adults consume as little saturated fat as possible and no more than 250 milligrams of cholesterol a day.

(B) One gram of saturated fat in food has roughly the same effect on blood cholesterol as 25 milligrams of cholesterol in food.

(C) Light cream, a dairy product that contains 5 times more cholesterol than does whole milk, is often chosen as a lightener by consumers who normally prefer whole milk.

(D) Certain nondairy coffee lighteners made without coconut oil contain less saturated fat and less cholesterol than does whole milk.

(E) The lower the saturated fat content of dairy products, the less cholesterol they usually contain

为什么是B, 哪里来的25？

Louisa_xy

nondairy coffee lighter           whole milk
fat                2 grams/spoon                   2/7 gram/spoon
cholesterol         none                           2 millgrams/spoon

等量的lighter和milk,前者可使cholesterol水平更高，因为B中的解释，1gram fat 的效果和25毫克cholesterol 的效果是一样的，2 gram fat就相当于50 millgrams,这明显比milk的胆固醇高多了，所以lighter使胆固醇水平高多了。

Louisa_xy

上面本来是列了个简单的小表格，可是乱了，你比较一下  nondairy coffee lighter和whole milk各自的composition 就可以了。

ssh

Thanks!