新G求助，两道逻辑题。

okqishiUID：3245371

今天练逻辑题，错的很失败...其中有两道题，看上去貌似挺简单的，死活做不对...废话不说，题目如下：
1.
Identical twins tend to have similar personalities; if environment outweighs heredity in personality development,twins raised together should presumably have more similar personalities than those raised apart. A recent study of identical twins in both situations measured 11 key traits through a questionnaire, and concluded that 7 of the 11are primarily products of heredity.
Which of the following, if established,would cast the most doubt on the study’s results?
(A) Fewer than half of the pairs of twins studied were raised separately.
(B) The ages of all of the twins studied fell within a 10-year range.
(C) Some of the traits that the study attributed to heredity developed in the separately raisedtwins because those pairs all grew up in similar families.
(D) Althoughover half the traits measured were determined to be linked to heredity, the nature of those traits varied widely.
(E) The 11traits that were measured constitute a representative sample of larger,generally accepted pool of key personality traits.

由于最近才开始练逻辑题，还木有找到门路...就这题而言，那个问题“cast the most doubt on the study’s results”指的是能引出怀疑问题结论的选项吗？是不是要找削弱结论的选项？答案是C




2.
When people predict that certain result will not take place unless a certain action is taken, they believe that they have learned that the prediction is correct when the action is taken and the result occurs. On reflection, however, it often becomes clear that the result admits of more than one interpretation.
Which of the following, if true, best supports the claims above?
(A) Judging the success of an action requires specifying the goal of the action.
(B) Judging which action to take after a prediction is made requires knowing about other actions that have been successful in similar past situations.
(C) Learning whether a certain predictive strategy is good requires knowing the result using that strategy through several trials.
(D) Distinguishing a correct prediction and effective action from an incorrect prediction andineffective action is often impossible.
(E) Making asuccessful prediction requires knowing the facts about the context of that prediction.

这题的问题是最后一句话“the result admits of more than one interpretation”不知该如何理解. 答案是D



求指教！

苏梳眠UID：2717864

你至少要说明你为什么错，大家才能帮你分析。
否则也只是别人帮你做一遍题而已。

okqishiUID：3245371

2# 苏梳眠 好的，我的疑问已编辑到原帖上了

zhouyu123031UID：3181463

A recent study of identical twins in both situations measured 11 key traits through a questionnaire，这句话里的both situations表示有两批双胞胎，一批一起养大，还有一批分开养大，但是最后结果发现他们共同的特质与遗传有关。
所以反对的答案就是：那批分开养大的双胞胎其实在差不多的家庭里生长（即环境类似） 这样的话这个study就没有对比了没意义了  要测在不同环境中长大的还是有很多共同点才能强调是遗传的因素

A选项属于是不必要的条件 这个统计属于概率问题 样本数量没过50%也不影响结果

zhouyu123031UID：3181463

第二题我是这样理解滴 不知对否
题目前面大概是说 你怎么怎么做就会有如何如何的结果 于是当你这样做了和你出了这样结果时
人就会觉得这个预测是正确的
但其实出这个结果应该还有其他原因 D选项也就是在说预测的正确性和行动的效率这个仅凭最后的一个结果是说不清楚的

zhouyu123031UID：3181463

话说楼主你这是不是GMAT的逻辑题？
赶脚我见过的GRE的逻辑题没有这么纠结= =+

okqishiUID：3245371

5# zhouyu123031
嗯，第二题了解，多谢!

okqishiUID：3245371

6# zhouyu123031
我也很纠结啊...

zhouyu123031UID：3181463

8# okqishi
=。= 加油

okqishiUID：3245371

9# zhouyu123031
嗯，谢谢！

cinkieUID：2933620

1# okqishi
第一题
Premise:双胞胎通常有相同特征
Conclusion:两种情况都是遗传因素更大
Assumption: 如果环境因素大于遗传因素，一起成长的双胞胎相同特征更多


ABE是对调查细节的攻击，C是对assumption的攻击，D是对结论的攻击，对一个研究来说，如果前提都错了，是不是后面的全部都被推翻了？ D只攻击了结论，没有C力度更强


第二题
admits取含有之意即可~
Premise:采取行动，事件才发生
Conclusion:事件发生的结果有不同的理解
Assumption:人们以为自己的预测正确（实则没有）

D和E是对该claim假设的支持，但D更强，D是best，E是next best

okqishiUID：3245371

11# cinkie
嗯，谢谢~

reg2012UID：3223491

11楼的分析得真到位！