GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - H_7_5SGIE02ZJM5HJ

The passage is primarily concerned with A. weighing the relative benefits and costs of delayed metamorphosis B. illustrating the range of costs that can result from delayed metamorphosis C. speculating on why the costs of delayed metamorphosis have gone unrecognized D. discussing a possible explanation of the costs of delayed metamorphosis E. debunking the notion that the costs of delayed metamorphosis are negligible