GRE Text Completion: Fundamental 24 Sets-GRE填空基础24套 - 9636KE78OFA0TZZJ!

The deterioration of the ozone layer is (i)____________, with the loss of penguin habitats being just one of the (ii)____________ results. A. dormant B. salutary C. pernicious D. deficient E. protracted F. deleterious