The government _____ air quality in urban areas from level one to five: excellent, fairly good, slightly polluted, poor and dangerous.
A. arranges | B.classifies | C.distributes | D.divides |
推荐套卷
The government _____ air quality in urban areas from level one to five: excellent, fairly good, slightly polluted, poor and dangerous.
A. arranges | B.classifies | C.distributes | D.divides |