GRE Reading Comprehension: ETS-GRE阅读ETS - Y1A2DZEQ8DGJAF927

The passage is primarily concerned with which one of the following? A. providing examples of possible solutions to a current crisis B. explaining how conflicting viewpoints in a current debate are equally valid C. determining which of two conflicting viewpoints in a current debate is more persuasive D. outlining the background and development of conflicting viewpoints in a current debate E. demonstrating weaknesses in the arguments made by one side in a current debate