GRE Text Completion: ETS Fundamental-GRE填空ETS基础 - 7C6M374I743XU443X

Scientists who are on the cutting edge of research must often violate common sense and make seemingly (i)____________ assumptions because existing theories simply do not (ii)____________ newly observed phenomena. A. absurd B. undermine C. opaque D. elucidate E. tarnished F. emulate