The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is (1) to say it anyway. He is that (2) bird, a scientist who works independently (3) any institution. He helped popularize the idea that some diseases not (4) thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
(5) he, however, might tremble at the (6) of what he is about to do. Together with another two scientists, he is publishing a paper which not only (7) that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in (8) are a particular people originated from central Europe. The process is natural selection.
This group generally do well in IQ test, (9) 12-15 points above the (10) value of 100, and have contributed (11) to the intellectual and cultural life of the West, as the (12) of their elites, including several world-renowned scientists, (13) . They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, (14) , have previously been thought unrelated. The former has been (15) to social effects, such as a p tradition of (16) education. The latter was seen as a (an) (17) of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately (18) . His argument is that the unusual history of these people has (19) them to unique evolutionary pressures that have resulted in this (20) state of affairs.
20（）
A.paradoxical
B.incompatible
C.inevitable
D.continuous
参考答案：A
解析：
[解题思路] 考查形容词。考查结构是形容词做前置定语修饰名词，即：______的现状。[A]选项表示“看似矛盾的，似非而是的”；[B]表示“不相容的，不兼容的”；[C]表示“不可避免的”； [D]表示“持续的”。由于文章提到的两件事分别为：这个群体天生很聪明和这个群体天生有严重的遗传疾病。这两件事的关系以前没有被联系到一起，而现在被一个科学家找到了联系。那么这种状态就是“看似相反的事情有了联系”正好与[A]的语义重合。