难！KAPLAN800--CR--14

仙蒂瑞拉

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。。。

fearfree

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

仙蒂瑞拉

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

-- by 会员 fearfree (2009/12/9 12:09:57)

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.

TheAssembly

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

zjqswmm

就算是kaplan 的解释我看了也觉得是E对呢 这才是weaken呀~~

仙蒂瑞拉

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

-- by 会员 TheAssembly (2009/12/10 10:49:31)

不好意思啊~~~误导你们了...答案是E.....

仙蒂瑞拉

就算是kaplan 的解释我看了也觉得是E对呢 这才是weaken呀~~

-- by 会员 zjqswmm (2009/12/10 14:53:53)

en ....答案就是E ....我搞错了啊~~