GRE Text Completion: OG/PP2-GRE填空OG/PP2 - 1VM49SYBHE2R85LMF

Higher energy prices would have many (i)____________ effects on society as a whole. Besides encouraging consumers to be more (ii)____________ in their use of gasoline, they would encourage the development of renewable alternative energy sources that are not (iii)____________ at current prices. A. pernicious B. aggressive C. unstable D. counterintuitive E. predictable F. adaptable G. salubrious H. sparing I. viable