这题怎么会选A,是不是题目有问题?

felifeli

GWD-10-Q19
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.

hughlv

为什么会觉得A有问题呢？

从题意中可知，实验证明两种物质（casein和aflatoxin）一起摄入会导致liver cancer。donation创造了摄入casein的条件，也产生了liver cancer的结果，唯一缺的就是afatoxin。

A提供了aflatoxin的来源，从而让居民的liver cancer和donated的奶粉产生了直接的关联。BCDE都是很容易排除的。不知道lz选了哪个可以讨论一下。

ssyy23

D讲一下吧

落薇裳

D只是说明奶粉是向这些tropical destination运送的最佳方式，这所说的全部都是指运输方面的。

而与运到以后当地人摄入并导致癌症没有关系呀

valerie66

TT
我怎么知道a选项提出来的这个aflatoxin是为了和casein搭档共同导致liver cancer呢..
乍一看a还以为是削弱..

sophiewangapo

哎，理解能力如何加强。

fadeday

那个support a mold growth是个什么意思啊？

hr951214

fadeday 发表于 2016-6-21 15:49
那个support a mold growth是个什么意思啊？

mold是霉菌的意思，整句说peanuts能使霉菌生长，产生aflatoxin

Ricky_Zhu

The donated milk was probably to blame:  recent laboratory research on rats has shown that rats briefly exposed to the substance aflatoxin tend to develop liver cancer when fed casein, a milk protein.
自己还是长难句理解上出了问题。。

Qijia1991

The donated milk was probably to blame:  recent laboratory research on rats has shown that rats briefly exposed to the substance aflatoxin tend to develop liver cancer when fed casein, a milk protein.

condition: milk>>>casein; casein+aflatoxin>>>liver cancer