GRE Text Completion: ETS Official Practice 150-GRE OP150:填空 - 3555S26K53AJ570KO

With the rate of technological (i)____________ accelerating – many people now consider a personal computer (ii)____________ after three years – the question of how to properly dispose of old equipment is no small matter. A. affordability B. outdated C. complexity D. familiar E. obsolescence F. inestimable