GRE Text Completion: ETS Fundamental-GRE填空ETS基础 - A47U7NH4B07F00PFX

The (i)____________ questions that consistently structure the study of history must be distinguished from merely (ii)____________ questions, which have their day and then pass into oblivion. A. instinctive B. discriminating C. philosophical D. random E. perennial F. ephemeral