标题: KAPLAN800--CR--14 [打印本页]
作者: hedgeforfu 时间: 2010-2-21 08:49 标题: KAPLAN800--CR--14
14. For years, scientists have believed that a certain hormone produced by the human liver was triggered by Enzyme U, which is released in the pancreas. Recently, however, researchers in Belgium discovered that Enzyme U is always preceded by the release of Enzyme W in the brain. Based on this, these researchers hypothesize that Enzyme W, not Enzyme U, triggers the production of the liver hormone.
If a second research project were set up to verify the findings of the Belgian researchers, which of the following test results would most seriously weaken their hypothesis?
(A) Enzyme W is released, but not followed by the release of Enzyme U, although the liver hormone is produced.
(B) Enzyme U is released, but neither preceded by the release of Enzyme W, nor followed by the production of the liver hormone.
(C) Neither Enzyme W nor Enzyme U is released and the liver hormone is not produced.
(D) Enzyme W is released, followed by the release of Enzyme U and the production of the liver hormone.
(E) Enzyme U is released and followed by the production of the liver hormone, although Enzyme W is not released.
答案是C。。我选了E。。。可是不知道E为什么错啊。。。还有。。C怎么就对了呢。。。
作者: augest 时间: 2010-2-21 19:04
W总在U前出现
U trigger Ho 目前假设是W trigger HO而不是U
A 强化。错
B 无法证明W 与HO关系
C
D 中度强化
E
作到这我也疑惑了。是不是答案有问题。我同意lz的答案
等高人出现解答
作者: hedgeforfu 时间: 2010-2-22 07:23
答案应该没问题的吧。。这是KAPLAN的解释：
(E) directly counters the hypothesis by providing an example of the effect without the supposed cause. If the release of Enzyme U is followed by the production of the liver hormone, even though Enzyme W was not released, then that hammers the researchers' conclusion that Enzyme W is responsible for the hormone.
(C) is perfectly consistent with the hypothesis: Without W, the researchers would not expect the liver hormone to be produced.
作者: iwvers 时间: 2010-2-23 07:19
C是这个意思啊。我晕
既没W又没有U的情况下荷尔蒙不会分泌
作者: 百草花园 时间: 2010-3-2 07:10
就算是kaplan 的解释我看了也觉得是E对呢 这才是weaken呀~~
作者: hedgeforfu 时间: 2010-3-3 20:50
en ....答案就是E ....我搞错了啊~~
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