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[Critical Reasoning]
试题详情
题目：
Outbreaks of Rift Valley fever occur irregularly in East Africa, several years apart. When outbreaks do occur, they kill thousands of cattle. A livestock vaccine against the disease exists but is rarely used. It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination, administering it after an outbreak begins helps very little. Nevertheless, experts predict that use of the vaccine will increase significantly within the next few years.
Which of the following, if true, provides the strongest justification for the experts' prediction?
选项:
A、Rift Valley fever is spread by mosquitoes, but each outbreak is so widespread that it is impractical to control it by using insecticides.
B、When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
C、It would take less than a month for producers of the vaccine to adjust their production operations to cope with a large increase in demand.
D、Many cattle farmers in East Africa are nomadic or live in remote villages, and such farmers, who have little access to modern veterinary medicine, are particularly hard hit by outbreaks of Rift Valley fever.
E、Recently published research has shown that certain identifiable climatic conditions are almost invariably followed, within two to five months, by an outbreak of Rift Valley fever.
答案:
E
提问：
我的思路：专家预测疫苗使用会增加，所以答案应该会涉及到疫苗。所以我选了C。
E没怎么看懂...
解答：
点赞2
阅读2531
提问：
排除了其他几项，但是总是感觉它没有提到这个condition会带来类似outbreak所以也觉得e无关。。
解答：
点赞-1
阅读2514
提问：
我的思路：专家预测疫苗使用会增加，所以答案应该会涉及到疫苗。所以我选了C。
E没怎么看懂...
解答：
点赞2
阅读2532
提问：
一题CR，没有录音。gmat2112同学，你真用功
解答：
点赞0
阅读2521
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