s*******1
发帖数: 135 | 1 The brains of identical twins are genetically identical. When only one of a
pair of identical twins is a schizophrenic, certain areas of the affected
twin's brain are smaller than corresponding areas in the brain of the
unaffected twin. No such differences are found when neither twin is
schizophrenic. Therefore, this discovery provides definitive evidence that
schizophrenia is caused by damage to the physical structure of the brain.
If the statements on which the conclusion above is based are al |
z*******n
发帖数: 830 | |
S**i
发帖数: 205 | 3 我倾向于选E。
题干的理解：题干其实通过双胞胎精神分裂症患者的案例提供了两个并存的现象：
1. 患有精神病
2.大脑存有genetical的缺陷（内生的缺陷，不是外在影响导致的）--大脑某部分要
smaller
题干的结论是在这两个现象之间建立了因果关系，即大脑的physical structure
damage是患精神分裂症的原因。
现在题目问从题干给与的前提下面哪些表述could是对的，换言之，只要选项兼顾1、2
两个现象，并试图找到其中的关系，尽管这个关系在逻辑上可能还有漏洞，但是could
be true.
A说genetic上没有疾病倾向性的人不会得精神分裂症。could be true--刚好是题干的
双重否定。题干表明，genetic上缺陷的人可能会患有精神病，反之，没有的人可能不
会得。
B说医学能控制精神分裂症的症状但不能治愈。--could be true--是题干的推衍结果。
因为精神分裂症是genetic damage导致的，是娘胎肚子里带出来的，医学只能治标估计
很难治本。
C说得精神分裂症的脑子和正常大脑还是有很多共同之处的。--could be true- |
D**********s
发帖数: 320 | 4 D.
Schizophrenia is not caused by genetic defects alone because twins with the
same genes don't always develop schizophrenia together. Gene is not the
sole factor. Therefore, D is wrong because if you can determine whether a
person will develop schizophrenia based on his gene alone, then twins should
always develop the same symptom. |
z*******n
发帖数: 830 | 5 agree.
D says the gene is the only factor. whereas the stimulus says the gene is
not. |
M*******k
发帖数: 249 | 6 D 题目是说患有精神病的twin是由于大脑结构的物理伤害而不是基因造成 所以D是对的
绝对不可能 |
