2008 年考研英语完形填空真题解析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
to say it anyway
He is that
bird, a scientist who works independently
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
he, however, might tremble at the
of what he is about to do
Together with another two scientists, he is publishing a paper which not only
that one group of humanity is more intelligent than the others, but explains the process that has brought this about
The group in
is a particular people originated from central Europe
The process is