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GWD逻辑

本主题由 arielcici 于 2008-3-16 16:53 移动

GWD逻辑

Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished.  Subsequently, the rate of liver cancers among those islanders increased sharply.  The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein.  This result is relevant because _______.

A.        in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B.        the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C.        casein is not the only protein contained in milk
D.        powdered milk is the most appropriate form in which to send milk to a tropical destination
E.        the people who were given the donated milk had been screened for their ability to digest milk
   Answer: A
但是在别的地方记得是C啊?

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我觉得应该选A
A选项说这个岛上的居民经常会与aflatoxin这种物质接触
又吃含casein的奶粉
与题目中所提到的对老鼠的试验相吻合
所以我觉得选A

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我也觉得是A
因为奶粉本身没问题,在exposed to the substances aflatoxin的情况下再用某种奶制品中通常会含有的蛋白质来喂养老鼠才会引发肝癌,那aflatoxin就是重点鸟~

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