GRE Reading Comprehension: OG/PP2-GRE阅读OG/PP2 - 492WNJ0V3L959RT5P

The passage is primarily concerned with A. explaining why certain research findings have created controversy B. pointing out the flaws in a research methodology and suggesting a different approach C. presenting evidence to challenge an explanation and offering an alternative explanation D. elucidating the means by which certain groups have adapted to their environment E. defending a long-held interpretation by presenting new research findings